Based on the mass-period method, a measuring device named double spring inversion pendulum was designed, which could measure the center of mass and moment of inertia of an engine.

基于振动系统质量周期法，设计了一种测试发动机质量参数的双簧倒立摆试验台。

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Based on the mass-period method, a measuring device named double spring inversion pendulum was designed, which could measure the center of mass and moment of inertia of an engine.

基于振动系统质量周期法，设计了一种测试发动机质量参数的双簧倒立摆试验台。

youdao