double-throw crank shaftdouble-throw crankshaft
... 双臂试验: two arm trial 双臂曲轴: double-throw crank shaftdouble-throw crankshaft 双臂电桥: double bridgedouble-arm bridgedouble-armbridgekelvin ...
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double-throw crank shaftdouble-throw crankshaft
双摆曲轴双摆曲轴
以上为机器翻译结果，长、整句建议使用 人工翻译 。