作用时的英文

例句与用法

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1. When the friction force acts alone, the total mechanical energy is not conserved .
   当只有摩擦力作用时，总机械能就不守恒。
2. When viscous forces predominate the flow is proportional to the pressure drop across the element .
   当粘滞力起主导作用时，流量当通过主要部分的压力降或正好。
3. The gravitational interaction is disregarded when interactions between individual protons are considered .
   在考虑单个质子间相互作用时，万有引力可以忽略不计。
4. When ethanol is exposed to air and the action of vinegar bacteria, it is converted into acetic acid and water .
   当乙醇暴露于空气中受醋酸细菌的作用时便变成醋酸和水。
5. In considering the destructive effect of a blast wave, one of its important characteristics is the overpressure .
   在研究爆震波的破坏作用时，其中一个重要的特性便是超压力。