Negative PCR works like wind resistance does on your car: the harder you put your foot down, the more the wind impedes any further increase in your speed (see "It pays to be negative").
负pcr的工作原理就像风对汽车的阻力一样：踩油门越困难，提速时风的阻力就越大。
Bottom frame brace system was imported from SCT and it intends to increase the anti-warp performance so that the freight car operating speed can be raised.
交叉支撑装置可以提高转向架的抗菱刚度，从而提高了车辆的运行速度。
Based on the analysis of abnormal increase of engine speed on a GM OPEL car, the author elaborates composition, working principle and control strategy of the electronic control throttle system.
通过对一辆通用欧宝轿车发动机转速异常升高原因的分析，论述电控节气门系统的组成、工作原理及控制策略。
The wear laws of passenger car wheels before and after speed increase are analysed, the reasons are found out, and relevant preventative measures are given out.
分析了提速前后客车车轮磨耗规律，找出原因，并提出了相应的预防措施。
The heat load borne by wheels increases after speed increase of the freight car.
货车提速后，车轮承受的热负荷相应增大。
The drag of cooling system will become bigger with the increase of speed of fan when the speed of car is constant and the drag of radiator is sensitive to speed of fan.
当风扇转速一定时，冷却系统阻力随车速的增大而增大，冷凝器阻力对车速变化比较敏感。
The drag of cooling system will become bigger with the increase of speed of fan when the speed of car is constant and the drag of radiator is sensitive to speed of fan.
当风扇转速一定时，冷却系统阻力随车速的增大而增大，冷凝器阻力对车速变化比较敏感。
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