大家晚上好，我们小组展示的一款通过轴承转动解决集水杯最低点问题的新型冷凝水收集装置，下面我将从项目背景、产品介绍、可行性分析、以及预期效果来展示。首先，我们看一下项目背景，现在临床上，呼吸机作为一项人工替代自主通气功能的有效手段，已普遍用于各种原因所致的呼吸衰竭，大手术期间的麻醉呼吸管理、呼吸支持治疗和急救复苏中。但是由于呼吸机送出的气体是比较干燥的，不能直接进入患者气道，因此我们需要对吸入气体进行加温加湿。目前我们常采用湿化器对呼吸机送出的气体进行湿化，但在进行湿化的同时，由于管路内的气体和管路外的空气形成了温度差致使一部分加温后的气体冷凝成积水。针对冷凝水的处理，目前是在呼吸机管路中加设集水杯进行收集。
Good evening everyone, our group showed a new condensate collection device that solves the problem of the lowest point of the water collection cup by rotating the bearing, and I will show it from the project background, product introduction, feasibility analysis, and expected results. First of all, let's take a look at the background of the project, and now in clinical practice, ventilators, as an effective means of artificial replacement of spontaneous ventilation function, have been widely used in respiratory failure caused by various causes, anesthesia respiratory management, respiratory support treatment and emergency resuscitation during major surgery. However, because the ventilator is relatively dry and cannot directly enter the patient's airway, we need to warm and humidify the inhaled gas. At present, we often use humidifiers to humidify the gas sent by the ventilator, but at the same time, due to the temperature difference between the gas in the pipeline and the air outside the pipeline, a part of the heated gas condenses into stagnant water. For the treatment of condensate, water collection cups are currently added to the ventilator line for collection.

但是目前临床用的集水杯也存在一定的问题。
However, there are also certain problems with the current clinical water collection cup.

集水杯与管路相连，它的位置就会受到管路的影响。当我们对病人进行一些操作，比如翻俯卧位时，会对呼吸管路造成牵拉，使其扭转，就像图片中这样，大家可以看到在管路扭转时，集水杯就会离开最低点，导致管路内的冷凝水不能很好的回流进入杯中，导致积水聚积在管路中。
The water cup is connected to the pipeline, and its position is affected by the pipeline. When we perform some operations on the patient, such as turning the prone position, it will cause traction on the breathing line to make it twist, just like in the picture, you can see that when the pipeline is twisted, the water collection cup will leave the lowest point, resulting in the condensate in the pipeline can not flow back into the cup well, resulting in the accumulation of water in the pipeline.

管路积水增多，不仅增加通气阻力，而且会影响呼吸机波形的显示，波形可能会显示锯齿状;也可能影响压力触发，导致误触发，同时也会增加反流误吸的风险等。
Increased water accumulation in the tubing not only increases the resistance to ventilation, but also affects the display of the ventilator waveform, which may appear jagged; It may also affect the pressure trigger, leading to false triggering, and also increasing the risk of reflux aspiration.

且集水杯缺乏相关报警装置，当冷凝水过满而未及时倾倒，不仅增加集水杯的重量，而且管路内的冷凝水无法回流到集水杯内，同样导致管路积水。
And the water collection cup lacks relevant alarm devices, when the condensate is too full and is not poured in time, not only increases the weight of the water collection cup, but also the condensate in the pipeline can not flow back into the water collection cup, which also leads to water accumulation in the pipeline.

此外，由于集水杯容量较小，护士老师需经常倾倒冷凝水，不仅工作量大，而且在倾倒冷凝水时，由于直接将集水杯从呼吸回路中取出，而此时回路中仍存在持续气流，因此会产生大量气溶胶导致院内感染。
In addition, due to the small capacity of the water collection cup, nurses and teachers need to pour condensate frequently, which is not only a large workload, but also when pouring condensate, As the cup is removed directly from the breathing circuit, where there is still a continuous flow of air, a large number of aerosols are generated that can lead to nosocomial infections.

同时，现在的呼吸回路中缺少湿度检测装置。目前，临床上较少使用湿度感受器，管路内具有加热丝的湿化罐因其价格较高，多在小儿使用，成人吸入的气体湿度一般靠医务人员的主观评估，无法根据确切的数据来进行湿化器温度调节。
At the same time, there is a lack of humidity detection devices in the current breathing circuit. At present, humidity receptors are rarely used in clinical practice, and humidification tanks with heating wires in the pipeline are mostly used in children because of their high price, and the humidity of the gas inhaled by adults generally depends on the subjective assessment of medical personnel, and the humidifier temperature cannot be adjusted according to accurate data.

前期我们小组查阅了目前解决上述问题的研究设计。我们先看一下有关集水杯位于最低点的相关设计，现有的集水杯位于垂直最低点的设计：
In the early stage, our group reviewed the current research design to address the above questions. Let's take a look at the design of the water collection cup at the lowest point, the existing design of the water collection cup at the vertical lowest point:

一是在管路上设置滑轨，使集水杯在管路上进行滑动，上面这种设计对于管路的密闭性无法保证，并且滑动的范围有限;下面这种设计的结构复杂，并且大大增加了管路的重量，可能会造成管路的牵拉问题。
First, a slide rail is arranged on the pipeline to make the water collection cup slide on the pipeline, and the above design cannot guarantee the airtightness of the pipeline, and the scope of sliding is limited; The structure of the following design is complex, and the weight of the pipe is greatly increased, which may cause the traction problem of the pipeline.

二是对管路的结构和材质进行改造，在管路上设有弹性伸缩部，当集水杯倾斜时，通过集水杯的重力牵拉一侧的伸缩部，使之回到最低点。由于是通过牵拉作用，可能会影响病人端气道。
The second is to transform the structure and material of the pipeline, and provide an elastic expansion part on the pipeline, when the water collection cup is tilted, the expansion part on one side is pulled by the gravity of the water collection cup to make it return to the lowest point. Because it is a traction action, it may affect the patient's airway.

另外还有一些是使用机械装置使之固定在最低点，这种装置在医务人员牵拉管路时，由于集水杯的固定，可能会导致人工气道从病人端脱出。
Others use a mechanical device to hold it at the lowest point, which may cause the artificial airway to detach from the patient when the medical staff pulls the tubing due to the immobilization of the water cup.

对于集水杯水位报警装置，目前大多数的设计是利用浮块的浮力触发报警，由于浮块受到液体的浮力，当水位上升时，浮块也随之上升，当到达水位报警线时，会触发与呼吸机相连的限位微动开关，触发呼吸机报警。目前还有一些是利用水位传感器直接触发呼吸机报警。
For the water level alarm device of the water collection cup, most of the current design is to use the buoyancy of the floating block to trigger the alarm, because the floating block is subject to the buoyancy of the liquid, when the water level rises, the floating block also rises, and when the water level alarm line is reached, the limit micro switch connected with the ventilator will be triggered, and the ventilator alarm will be triggered. At present, there are also some that use water level sensors to directly trigger ventilator alarms.

对于湿度监测装置，目前已有位于湿化罐处的湿度监测，以及位于人工气道内的湿度监测，这种监测是利用传感器芯片检测气管内的温度和湿度，并将数据传输到呼吸机上显示。
For humidity monitoring devices, there are currently humidity monitoring located at the humidification tank, as well as humidity monitoring located in the artificial airway, which uses sensor chips to detect the temperature and humidity in the trachea, and transmits the data to the ventilator for display.

我们小组根据目前的临床问题以及现有的研究，设计了一款以集水杯始终处于垂直最低位为核心，并同时具有湿度监测，水位报警及自动密闭引流的新型冷凝水收集装置。
Based on the current clinical problems and existing research, our team has designed a new condensate collection device with the water cup always at the lowest vertical position as the core, and at the same time has humidity monitoring, water level alarm and automatic closed drainage.

下面我将对我们的产品进行详细的介绍。这是一张总体设计图，1是湿度传感器，2是呼吸管路，3是带轴承的三通管，4是带有轴承的集水杯盖，5是单向阀，6是电极联通报警，7是带刻度的引流袋，接下来我将依次介绍。
Below I will introduce our products in detail. This is a general design drawing, 1 is a humidity sensor, 2 is a breathing line, 3 is a tee tube with bearings, 4 is a water collection cup lid with bearings, 5 is a one-way valve, 6 is an electrode communication alarm, 7 is a drainage bag with a scale, and I will introduce it in turn.

首先是湿度传感器，根据这种气管内的芯片传感器，我们设计了一种集成式的可拆卸式湿度传感器，类似于主流式呼末二氧化碳监测，在需要对管路中的气体进行湿度监测时，将其安装在Y形管处即可实时监测呼吸机管路中气流的湿度。同时传感器上方设有电子显示屏，可以实时显示所监测到的湿度，为我们进行湿化罐温度的调节提供更直观的数据反馈。
The first is the humidity sensor, based on this chip sensor in the trachea, we have designed an integrated detachable typeHumidity sensors, similar to mainstream end-tidal CO2 monitoring, can be installed at a Y-shaped tube to monitor the humidity of the airflow in the ventilator line in real time when the humidity of the gas in the pipeline is required. At the same time, there is an electronic display screen above the sensor, which can display the monitored humidity in real time, providing more intuitive data feedback for us to adjust the temperature of the humidification tank.

实时监测呼吸机管路中气流的湿度，防止湿度过高在管路中产生过多的冷凝水，从根本上解决冷凝水的产生过多问题；同时便于临床医生判断送入气湿度是否合适，并且也可以作为判断患者痰液湿化程度的依据。
Real-time monitoring of the humidity of the airflow in the ventilator pipeline to prevent excessive condensate in the pipeline due to excessive humidity, and fundamentally solve the problem of excessive condensate generation; At the same time, it is convenient for clinicians to judge whether the inlet gas humidity is appropriate, and can also be used as a basis for judging the degree of sputum humidification of patients.

我们也对传统的呼吸机管路进行了长度和形状的改造，将靠近病人端的部分管路设计成蛇形管，其余管路均为普通光滑管路。靠近病人端产生的冷凝水通常较难被集水杯收集，因此该部分设计为蛇形管可以增加冷凝水的沉积，减少患者误吸风险。而我们将其余管路改为普通光滑管路是为了便于管路中的冷凝水流入集水杯，减少管腔内冷凝水过多积聚，减少阻力，减少死腔，相同长度的直行管和蛇形管相比较，直行管的耗材相对较少，可以节约成本。在管路长度方面，集水杯到病人端，蛇形：光滑柱形长度比=1:1，蛇形管的长度大约是病人气道到床边缘的距离，因为从病人端到床边缘的冷凝水不易流入集水杯，设计成蛇形管，便于冷凝水的沉积，防止反流，并且也防止集水杯离病人端过近，而使其难于位于最低点，也有利于管路冷凝水的回流。
We have also modified the length and shape of the traditional ventilator tubing, and some of the tubing near the patient end is designed as a serpentine tube, and the rest of the tubing is ordinary smooth tubing. Condensate generated close to the patient is often difficult to collect by the collection cup, so the serpentine design of this section can increase condensate deposition and reduce the risk of aspiration by the patient. And we change the rest of the pipeline to ordinary smooth pipeline in order to facilitate the condensate in the pipeline to flow into the water collection cup, reduce the excessive accumulation of condensate in the lumen, reduce resistance, reduce the dead space, the same length of straight pipe and serpentine pipe compared with the consumables of the straight pipe is relatively less, can save costs. In terms of the length of the tubing, the water collection cup to the patient end, serpentine: smooth cylindrical length ratio = 1:1, the length of the serpentine tube is about the distance from the patient's airway to the edge of the bed, because the condensate from the patient end to the edge of the bed is not easy to flow into the water collection cup, designed as a serpentine tube, which facilitates the deposition of condensate and prevents reflux, and also prevents the water collection cup from being too close to the patient end, making it difficult to be located at the lowest pointIt is also conducive to the reflux of condensate in the pipeline.

接下来介绍我们的轴承结构，顾名思义，轴承就是给各种轴类结构（如转轴、心轴、传动轴）起支撑作用的部件。从原理上说，轴承是把具有相对转动，或者允许有相对转动的两个部件之间联系在一起，以高效、平稳地实现支撑作用。
Next, we will introduce our bearing structure, as the name suggests, the bearing is the component that supports various shaft structures (such as rotating shafts, mandrels, and transmission shafts). In principle, a bearing is a link between two components that have relative rotation, or allow relative rotation, to achieve a supporting role efficiently and smoothly.

在我们的设计中，将三通管与管路相连的两端设计为轴承结构，轴承有一段突出的结构，用于与管路通过螺纹拧转连接。通过轴承结构使管路和集水杯相对分离，管路扭转不会使集水杯的位置随之扭转。并且，当管路扭曲时，它的扭转的力量可以让管路相连的轴承结构能够通过内部的钢柱进行转动，使管路恢复原位，一定程度上保证通气安全性，减少管路问题导致的呼吸机高压报警，同时集水杯在轴承的转动方向上可以位于垂直位。
In our design, the two ends of the tee pipe are designed as bearing structures, and the bearing has a protruding structure for the connection with the pipe by threaded twisting. The pipe and the water cup are relatively separated by the bearing structure, and the pipe twisting will not cause the position of the water cup to be torn. In addition, when the pipeline is twisted, its torsional force can make the bearing structure connected to the pipeline rotate through the internal steel column, so that the pipeline can be restored to its original position, which ensures the safety of ventilation to a certain extent, reduces the ventilator high-pressure alarm caused by pipeline problems, and at the same time, the water collection cup can be located in the vertical position in the direction of rotation of the bearing.

在垂直位的基础上，集水杯在非轴承的旋转方向上可能是倾斜的，无法保证最低点，为了解决这个问题，我们对集水杯的结构进行改造，在三通管与集水杯中间添加了一个利用轴承可以左右摆动的结构，通过两个支臂将集水杯的管路与轴承相连，并且为了实现左右摆动，在三通管和集水杯的开口之间使用类似蛇形管的软管结构，这样使集水杯在左右摆动的时候，软管不会压闭。
On the basis of the vertical position, the water collection cup may be inclined in the direction of rotation of the non-bearing, and the lowest point cannot be guaranteed, in order to solve this problem, we transform the structure of the water collection cup, add a structure that can swing left and right by using the bearing in the middle of the tee pipe and the water collection cup, connect the pipeline of the water collection cup with the bearing through two supporting arms, and in order to realize the left and right swing, use a hose structure similar to a serpentine pipe between the tee pipe and the opening of the collection cup, so that when the water collection cup swings left and right, the hose will not be pressed.

与集水杯相连的轴承结构能够让集水杯在水平方向类似钟摆样摆动，从而使保持杯体相对于地面的垂直状态，使其能够位于最低点，能够更好地收集冷凝水，从而避免冷凝水阻塞管路，预防患者发生呼吸机相关性肺炎等。
The bearing structure connected to the water collection cup can make the water collection cup swing in the horizontal direction like a pendulum, so as to maintain the vertical state of the cup relative to the ground, so that it can be located at the lowest point, and can better collect condensate, so as to avoid condensate blocking the pipeline and prevent patients from developing ventilator-associated pneumonia.

这是我们设计的轴承结构的不同方位的视图，在三通管两端通过轴承与管路相连，解决管路扭曲问题，保持集水杯的垂直位；通过集水杯两端与轴承相连，保持集水杯最低点位置。
This is a view of the different directions of the bearing structure we designed, which is connected to the pipeline through the bearing at both ends of the tee pipe to solve the problem of pipeline distortion and maintain the vertical position of the water collection cup; It is connected to the bearing through both ends of the water collection cup to maintain the lowest point position of the water collection cup.

在集水杯上部，安装有弹簧载重阀，也是目前临床上常用的类型，冷凝水作用于横板上，通过压缩弹簧，实现杯内冷凝水只进不出，防止杯内冷凝水回流，引起VAP等问题。
In the upper part of the water collection cup, a spring load valve is installed, which is also a commonly used type in clinical practice at present, and the condensate acts on the transverse plate, and the condensate in the cup is only in and out by compressing the spring, so as to prevent the condensate in the cup from flowing back, causing problems such as V AP.

此外，我们还在集水杯内部增加了结构简单的电极联通报警，在预先设定的报警水位线处安装两个金属电极，电极通过导线和电池和发声装置连接，当集水杯内水位较低时，两个电极之间不会产生电流；当杯内水位上升到预设高度时，利用水的导电性，两个电极之间会形成一个可导电的通路，电流从一个电极流入水，经过水传到另一个电极，当电流通过发声装置时，即可产生声音报警信号，提示医务人员排放冷凝水。
In addition, we have added a simple electrode connection alarm inside the water collection cup, two metal electrodes are installed at the pre-set alarm water level, and the electrodes are connected by wires and batteries and sound generating devices, when the water level in the water collection cup is low, no current will be generated between the two electrodes； When the water level in the cup rises to a preset height, using the conductivity of water, a conductive path will be formed between the two electrodes, and the current flows into the water from one electrode, and passes through the water to the other electrode.

我们也对集水杯的引流装置进行了改造，3是带有刻度标记的引流袋，1是引流袋与集水杯的连接口，2和4分别是引流袋的上下开关。
We have also modified the drainage device of the water collection cup, 3 is the drainage bag with a scale mark, 1 is the connection port between the drainage bag and the water collection cup, and 2 and 4 are the upper and lower switches of the drainage bag respectively.

临床工作中，容量管理非常重要，对于进行机械通气的患者来说，呼吸道的非显性失水量显著增加。而冷凝水可以间接反映患者的呼吸道非显性失水量，因此我们在袋体上添加容量刻度，从而方便我们定量记录倾倒的冷凝水量。
Volume management is important in clinical practice, and insensible water loss in the airways is significantly increased in patients undergoing mechanical ventilation. The condensate can indirectly reflect the insensible water loss of the patient's respiratory tract, so we add a volume scale to the bag to facilitate the quantitative recording of the amount of condensate poured out.

当引流袋中收集到一定量的冷凝水时，我们就可以将2关闭，防止在排水的过程中，引流管内的水继续进入引流袋中。然后将4打开，排出袋中的水。这样做既能够避免断开呼吸回路影响患者的通气，也能够更好的记录患者呼吸道非显性失水量，从而对患者进行更好的液体出入量管理和吸入气湿度的调整。
When a certain amount of condensate is collected in the drainage bag, we can close the 2 to prevent the water in the drainage tube from continuing to enter the drainage bag during the drainage process. Then open 4 and drain the water from the bag. This can not only avoid disconnecting the breathing circuit and affecting the patient's ventilation, but also better record the patient's respiratory insensible water loss, so as to better manage the fluid inflow and output of the patient and adjust the inhalation air humidity.

为了避免集水杯的重量对管路的影响，我们利用呼吸机自带的支架将三通管与支架相连，既不影响管路的转动，也可减轻集水杯的重量问题。
In order to avoid the influence of the weight of the water collection cup on the pipeline, we use the bracket that comes with the ventilator to connect the tee tube to the stent, which does not affect the rotation of the pipe and can also reduce the weight of the water collection cup.

以上就是我们所设计产品的展示，我们最主要的创新体现在增加了双轴承结构。与管路相连的上方的两个双轴承能在各种临床情况下自由转动，避免管路扭曲，并且实现集水杯的垂直位；集水杯上的两个双轴承结构能够水平方向摆动，自动位于管路最低点。此外我们还对目前的管路结构进行改造，来更好的收集回路中的冷凝水。在回路中添加可拆卸式湿度传感器，实时监测管路中气流湿度，指导我们进行湿化温度的调整。以及通过水位报警和冷凝水定量排放，可以记录呼吸道非显性失水量，并减轻医务人员的工作量。
That's it for the products we've designed, but our main innovation is the addition of a two-bearing structure. The two double bearings on the top of the tubing can rotate freely in various clinical situations, avoid the twisting of the tubing, and realize the vertical position of the water collection cup; The two double-bearing structures on the sump oscillate horizontally and automatically position themselves at the lowest point of the line. In addition, the current piping structure was modified to better collect condensate in the circuit. A detachable humidity sensor is added to the circuit to monitor the airflow humidity in the pipeline in real time and guide us to adjust the humidification temperature. As well as through water level alarms and condensate rationing, it is possible to record the insignificant water loss of the respiratory tract and reduce the workload of medical staff.

下面展示我们产品的可行性和预期效果
The feasibility and expected results of our products are shown below

在选题上，小组成员在文献分析、临床调查和导师指导的基础上，充分了解目前临床上冷凝水收集所存在的问题，确定改造冷凝水收集设备的选题。
In terms of topic selection, on the basis of literature analysis, clinical investigation and mentor guidance, the team members fully understood the current problems of condensate collection in clinical practice, and determined the topic of transforming condensate collection equipment.

设计理论假设充分、科学，目标内容清晰，实施的可操作性较强。本项目所涉及的轴承、传感器等技术已发展较成熟，可支撑该项目产品的研发。湿度传感器可重复使用；新设计管路较传统管路制造成本低。我们还为集水杯设定了额定水位报警，进一步保障杯中的冷凝水能得到及时处理，大大降低VAP的发生风险。同时为额外增添的引流袋设置容量刻度，实现冷凝水的定量排放，方便临床进行液体出入量管理。
The design theory is full of assumptions and scientific, the target content is clear, and the implementation is operable. The bearings, sensors and other technologies involved in this project have been developed maturely, which can support the research and development of products in this project. The humidity sensor is reusable; The new design pipe is less expensive to manufacture than the traditional pipeline. We also set a rated water level alarm for the water collection cup to further ensure that the condensate in the cup can be treated in time, greatly reducing the risk of VAP. At the same time, a volume scale is set for the additional drainage bag to realize the quantitative discharge of condensate, which is convenient for clinical fluid inflow and output management.

对于我们所设计的产品，我们也进行了可行性分析。
We also carried out a feasibility analysis for the products we designed.

在选题上，我们小组在文献分析、临床调查和导师指导的基础上，充分了解目前临床上集水杯在收集冷凝水所存在的问题，最终确定改造集水杯设备创新主题。
In terms of topic selection, on the basis of literature analysis, clinical investigation and mentor guidance, our team fully understood the problems existing in the collection of condensate in the current clinical collection cup, and finally determined the innovation theme of transforming the collection cup equipment.

在理论上，我们使用的元件机械结构和物理原理较为简单，阻力小，可以达到预期效果，并且符合现代机械设计原理，成熟度高。
Theoretically, the mechanical structure and physical principles of the components we use are relatively simple, the resistance is small, the desired effect can be achieved, and it conforms to the principles of modern mechanical design, and has a high degree of maturity.

在技术上，项目中所涉及的轴承、传感器等技术也发展的较为成熟，可以支撑我们产品的研发。
In terms of technology, the bearings, sensors and other technologies involved in the project are also relatively mature, which can support the research and development of our products.

在经济上，我们的湿度传感器为可拆卸式，能够重复使用，并且改造后的管路较传统管路制造成本更低；并且设备结构简单明了，易于实现成本控制和标准化生产，适合批量生产和销售；
Economically, our humidity sensors are detachable, reusable, and retrofitted tubing is less expensive to manufacture than conventional tubing; And the equipment structure is simple and clear, easy to achieve cost control and standardized production, suitable for mass production and sales;

我们的预期效果是设计出一款新型集水杯，可自动调节至最低点；新型的呼吸管路提高冷凝水收集效率，通过湿度检测器实时监测气体的湿度，通过报警和引流装置：减轻医务人员工作量，预防患者误吸发生，以及定量记录冷凝水的产生。
The result was a new type of water collection cup that automatically adjusts to the lowest point; The new breathing line improves the efficiency of condensate collection, the humidity of the gas is monitored in real time through the humidity detector, and the alarm and drainage device reduces the workload of medical staff Prevent aspiration in patients and quantify condensate production.

并且我们的产品具有很大的推广价值
And our products have great promotion value

1. 市场前景广阔：呼吸机是医疗设备中必不可少的一种，近年来呼吸机的市场需求量不断增加，冷凝水的收集装置是呼吸机不可或缺的一部分，因此该设备有很大的推广市场。
1. Broad market prospects: Ventilator is an indispensable kind of medical equipment, in recent years, the market demand for ventilators has been increasing, and the condensate collection device is an indispensable part of ventilators, so the equipment has a great promotion market.

2. 可拆卸式设计方便维护：该设备采用可拆卸式设计，方便清洗和更换不同的元件，可以大大延长设备的使用寿命，降低维护成本。
2. Detachable design for easy maintenance: The equipment adopts a detachable design, which is convenient for cleaning and replacing different components, which can greatly extend the service life of the equipment and reduce maintenance costs.

针对目前是冷凝水的收集问题，我们的产品可以解决集水杯的最低点问题，进而更高效的进行冷凝水的收集，并且通过湿度监测，可以更好地调整湿化温度，从根本上解决冷凝水产生过多的问题。
In view of the current condensate collection problem, our products can solve the problem of the lowest point of the water collection cup, and then collect condensate more efficiently, and through humidity monitoring, the humidification temperature can be better adjusted, and the problem of excessive condensate generation can be fundamentally solved.

以上是我们的设计展示，请各位老师批评指正。
The above is our design display, please criticize and correct the teachers.