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。
There are regular dynamics for plant reserves between continuous grazing and rotational grazing, but dynamics are different.
群落主要植物种群贮藏性营养物质动态呈现规律性变化，但不同放牧制度下，变化规律存在差别。
There are regular dynamics for plant reserves between continuous grazing and rotational grazing, but dynamics are different.
群落主要植物种群贮藏性营养物质动态呈现规律性变化，但不同放牧制度下，变化规律存在差别。
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