Engine revolution should not exceed the maximum permissible.
发动机的转数不应超过所允许的最大值。
Then the author analyses the effect of the frame vibration and tries to make the natural frequency of vibration beyond the range of engine revolution rate.
分析了发动机振源对车架振动的影响，使车架主要模态的自振频率避开了发动机转速范围；
Simulations about reducing noise excited by engine revolution are done by laying secondary source at proper places on the simplified finite element model of a passenger car.
根据所得结论，在简化的客车有限元模型上的适当位置安放次级声源，对因发动机振动激励引起的噪声进行车内有源消声的仿真分析。
The utility model relates to a motorcycle speed-limiting device, comprising an engine revolution speed transducer (1), a driving speed transducer (2) and an ignition controller.
本实用新型涉及的摩托车限速装置，包括发动机转速传感器（1）、摩托车车速传感器（2）及点火控制器；
When gasoline engine revolution or just engine off, do not have to contact heat-removal components and so on exhaust manifold, when heat engine strictly prohibits opening the radiator cap.
在汽油机运转或刚停机时，不要接触排气歧管等排热零件，在热机时严禁开启散热器盖。
However, the arrival of the steam engine initiated a complete transformation in rail transportation, entrenching and expanding the Industrial Revolution.
然而，蒸汽机的出现引发了铁路运输的彻底变革，并巩固和拓展了工业革命的成果。
Following James Watt’s improvement of the steam engine in 1764, almost every year in the late 18th century brought a new revolution.
在詹姆斯瓦特于1764年蒸汽机发明之后，18世纪末的每一年几乎都有新的重大变革。
Influence rules of air intake preheating on revolution speed, starting time and HC emission in the starting process of electronic controlled diesel engine were acquired.
得出了进气预热在电控柴油机起动过程中对转速、起动时间、HC排放的影响规律。
Influence rules of air intake preheating on revolution speed, starting time and HC emission in the starting process of electronic controlled diesel engine were acquired.
得出了进气预热在电控柴油机起动过程中对转速、起动时间、HC排放的影响规律。
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