parallelogram pendulum
... parallelogram of velocities速度平行四边形 parallelogram pendulum平行四边形摆 paramagnetic resonance phenomenon顺磁共振现象 ...
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阐明斜平面、摆臂平行四边形、端面凸轮等部分的设计和原理。
The parts design and principle were discussed that includes the oblique plane, the swing arm parallelogram, and the end plane CAM.
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