单词	pulley blocks
释义	pulley blocks 滑轮组
随便看	Reference Drawing Group reference drawing number referenced table referenced testing domain Referenced threshold referenced variable referencee reference earthquake design level reference earth station pattern reference earth station radiation diagram reference ecosystem reference edge reference edge of tape reference effect reference efficiency reference electrical null position reference electroade reference electrode reference electrodecomparison electrode reference electrode filling solution reference element reference element technique reference ellipsoid reference ellipsoidreference spheroid reference ellipsoid spheroid