Question

跪求英语高手翻译

武广高速客运专线和郑西高速客运专业的开通，我国铁路跨跃式创下时速350km/h运营世界高速铁路记录，但于此同时旅客对旅途舒适性的要求也越来越高。高速动车在高速通过隧道及会车时，动车组受隧道压力波的作用，车体表面产生较强的正压和负压的冲击波，这个冲击波通过换气系统导致车内压力下降，当空气压力下降速率太快时，将使人耳出现耳鸣、响胀和耳痛的症状。为了解决高速列车在通过隧道及会车时，车内旅客出现的这种症状，我们针对CRH2型动车组换气控制系统进行研究，气装置具有提供新风及排出废气的功能，换气装置采用双向风机原理，由一台变频控制的双出轴电机带动两台高压的高速离心风机进行动车组客室的进、排气。车外新风经过装有风量调节板的给风侧，被子高压力送风风机吸入，分别送到两台空调机组中，客室内回风被高压排风风机吸入，进入装有电动机的换气装置的内部通道，在冷却风机电动机后从调节板的出风口排出车外。正常运行时，它可以保证从室风排出的风量与补充的新风风量相，从而保证客室内空气压力的恒定。本设计要求针对这换气系统，在换气通道上装上节流阀，通过车内外压力传感器，检测列车高速通过隧道时，当车内压力降低时，单片机控制节流阀的开度，调节车内的排出风量，从而确保车内压力变化不影响旅客的舒适性。

Answer 1

Wuhan-Guangzhou high-speed passenger line and high-speed passenger professional Cheng opened the West, China's record speed rail Leap 350km / h high-speed rail operators in the world record, but also passengers on this journey comfort are increasingly high requirements. High Speed Train at high speed through the tunnel and will be car, EMU pressure wave by the tunnel effect, the body surface of a strong positive pressure and negative pressure of the shock, the shock wave the car through the ventilation system leading to pressure drop, when air pressure drop rate is too fast, it will make people tinnitus ear, ring expansion and earache symptoms. In order to solve the high-speed train through the tunnel and will be car, passenger car such symptoms appear, we type CRH2 EMU for control systems of ventilation, gas installation has to provide fresh air and exhaust features, ventilation devices used two-way fan principle, from a two-frequency control of motor output shaft driven two high-voltage high-speed centrifugal fan EMU passenger compartment of the inlet and outlet. The new car is equipped with air through air volume adjustment plate to the air side, the high pressure air supply fan quilt inhalation, were taken to two air conditioning units in guest room return air to be inhaled high-pressure exhaust fan into the ventilation unit with motor internal passages in the cooling fan motor from the regulator board after the discharge outlet car. Normal operation, it can guarantee the wind emitted from the room air flow and the amount added with the new air damper, thus ensuring a constant pressure off the indoor air. The design requirements for the ventilation system installed on the throttle in the ventilation channel through the car inside and outside the pressure sensor to detect high-speed train through the tunnel, when the interior pressure decreases, the MCU control throttle opening to regulate the car the discharge air volume, pressure to ensure that the car does not affect passenger comfort.

Answer 2

Wuhan-guangzhou passenger special line and zheng west passenger railway, professional leaps 350km/h operations per set the world record, but in high speed railway passenger on the journey comfort requirements more and more is also high. High-speed actuation vehicle speed through the tunnel and pulses in/under pressure, the function, the tunnel body surface wave produced strong pressure and negative pressure of shock wave, the air inside the system caused by pressure drop, when air pressure drop speed fast, will make the human ear appear tinnitus, expansion and ear pain symptoms. In order to solve the high-speed trains passing through a tunnel and passenger vehicle, the symptoms appear, we train CRH2 type ventilation control system is studied, and provide fresh air and gas discharge waste gas function, ventilators, adopts two-way fan by a frequency conversion control principle of the shaft motor drive two pairs of high speed centrifugal fan on the passenger trains the intake and exhaust. Fresh air outside the car after adjusting plate with the contralateral to the wind, high pressure air suction fan, air conditioning units, sent two relays in return is high exhaust fan motors with inhaled, enter the ventilators, cooling fan passages from the adjustment of the plate after motor vehicle exhaust outlet. During normal operation, it can guarantee the wind from the room air exhaust air is fresh and complement, thus ensuring the air pressure inside the classroom. The design requirements for the ventilation system is installed on the throttle air passages in the car, by inside and outside pressure sensor, the detection speed through train tunnel, when interior pressure decreases, and single-chip microcomputer control, adjust the throttle discharge air inside the car, so as to ensure that the pressure change does not affect the passenger comfort.