pulley
noun /ˈpʊli/
/ˈpʊli/
- enlarge imagea wheel or set of wheels over which a rope or chain is pulled in order to lift or lower heavy objects
滑轮;滑轮组;滑车 - a system of ropes and pulleys
绳索滑轮系统 - The scenery was moved across the stage by ropes and pulleys.
布景被绳子和滑轮移过舞台。 - a system of chains passing over pulleys
穿过滑轮的链条系统
词源Middle English: from Old French polie, probably from a medieval Greek diminutive of polos ‘pivot, axis’. - a system of ropes and pulleys