主动: initiative滑轮: pulley动滑轮: [机械工程] fall block; movable block差动滑轮: differential pulley; differential sheave; differential tackle; wheel and axle差动滑轮的: wheel-and-axile从动滑轮: follow-up pulley电动滑轮: electric pulley电动滑轮组: electric turnable pulley block链动滑轮: chain block形驱动滑轮: poly “v” drive pulley: v; poly “v” drive pulley: v制动滑轮: brake roller主动滑动面: active surface of sliding主动滑动区: active slide area主动滑移系统: active slip system滑车吊链;链动滑轮: chain block随动轮 从动滑轮 从动轮: follow-uppulley滑车吊链;链动滑轮(尖箔落): chain block滑车吊链;链动滑轮(链滑车): chain block主滑轮 端部滚筒 天轮 主动皮带轮: headpulley滑轮: pulley; sheave; glidewheel; pulley wheel; rope block; block; roller◇滑轮轭 pulley fork; 滑轮杆 roller arm; 滑轮梭子 fly shuttle; 滑轮跳板 brow; 滑轮组 pulley block; purchase tackle; block and tackle; block and falls动滑车: fly block; mobile block; movable block; movable pulley; moving block; running block; traveling block; travelling block动滑道: sliding ways主动: 1.(能够造成有利局面) initiative 主动作某事 do sth. on one's own initiative; do sth. of one's own accord; 争取主动 try to gain the initiative; contend for the initiative; 主动为人们做好事 be active in doing good to men; 主动求婚[爱尔兰] take the initiative in courtship; 她不愿意主动这么做。 she does not like to do so from her own initiative. 他工作很主动。 he displays great initiative in his work.2.[机械工程] driving; 主动报价 unsolicited offers; 主动导航 active homing; 主动舵 active rudder; main rudder; 主动滑轮 driving pulley; feed pulley; 主动皮带轮 drive pulley; 主动注意 [心] active attention侧滑轮: side roller呆滑轮: dummy sheave