根据振动理论建立了零部件单摆振动周期和转动惯量的关系，给出了实际测量方法。
Methods According to vibration theory the relationship between the period of a torsional pendulum and the moment of inertia of a part is established and the test method is given.
为了提高并联机床实际结构的动态特性，减少动态的基础上，这是根据振动理论与粘性阻尼模型。
To improve the dynamic characteristics of actual structure of parallel machine tools, they are reduced with a viscous damping model based on dynamics, which is developed according to vibration theory.
每一个颗卫星上都装有四个“原子钟”，它们根据量子理论法则，以精确的频率振动。
Each satellite contains four "atomic clocks", which vibrate at a precise frequency, according to the laws of the quantum theory.
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