词汇	牵引复滑车
释义	牵引复滑车 pull- and-out block
随便看	material wear material weighing system material weight map material welfare material well material well-being material well-being and productivity material which insulates well material which may liquefy material with a close texture material with anisotropic thermal expansion material with carbon element material with high humidity material with high water absorbency material with inner structure material with laid pile material with Li material with memory material with upright pile material witness material-witness material witnesses material work material working and synthesis material work values