单词	back shaft
释义	back shaft noun 1 : a countershaft driven by a back gear 2 : any shaft placed at the back of a machine Word History First Known Use 1847, in the meaning defined at sense 1
随便看	fault conglomerate fault gouge fault line fault plane fault rock fault rubble fault scarp fault slip fault surface fault terrace fault tolerance fault trace fault trough fault valley fault vent fault zone fault-line scarp fault-line valley fault-tolerant faultage faulted faulter faultfinder faultfinders faultfinding

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