transmission unit短语²²⁷⁵³ 基本例句 通话单位,传递单位 The vibration generating mechanism of a new type of mechanical transmission unit have been analyzed and revealed through theoretical analysis and vibration measurement on a test-rig. 通过对三环减速机环板动态受力过程的分析与振动试验，揭示了其振动发生根源。 cnki