According to the actual operational condition of engine, calculate dynamics with different rotational speed and breakout pressure, and get the surface vibration speed stage of engine.
根据车用发动机的实际使用工况，在不同转速及爆发压力下对其进行动力学计算，得到发动机的表面振动速度级。
According to the actual operational condition of engine, calculate dynamics with different rotational speed and breakout pressure, and get the surface vibration speed stage of engine.
根据车用发动机的实际使用工况，在不同转速及爆发压力下对其进行动力学计算，得到发动机的表面振动速度级。
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