pulley

大学 FREQ #31443

n. 滑车, 滑轮 [医] 滑车

发音

US /ˈpʊli/

词形变化

pulleys 复数 pulleys pullies 复数 pullies pulleyed pulleying pulleys 三单 pulleying 现在分词 pulleyed 过去式 pulleyed 过去分词

教材释义与例句

名词

滑轮；皮带轮；滑车

动词

用滑轮升起

释义与例句

n.
  1. 1.

    One of the simple machines; a sheave, a wheel with a grooved rim, in which a pulled rope or chain lifts an object (more useful when two or more pulleys are used together, as in a block and tackle arrangement, such that a small force moving through a greater distance can exert a larger force through a smaller distance).

    滑车

    滑轮

    可数 工程
  2. 2.

    Annular ligament of the finger.

v.
  1. 1.

    To raise or lift by means of a pulley.

    及物

词汇关系

名词

同义词 2

block pulley block

上位词 2

machine simple machine

下位词 3

bollock fairlead idle wheel

整体词 1

block and tackle

相关短语

pulley block [医]滑轮组，滑车组，手拉吊挂 pulley shell pulley shells pulley blocks pulley bone pulley bones mule pulley rubbish pulley speed pulley motor pulley

词源

From Middle English puly, poley, from Old French poulie, polie (“a pulley, windlass”), from Medieval Latin polidia, plural mistaken for the feminine of neuter polidium, from Ancient Greek πολίδιον (polídion, “little pivot”), diminutive of πόλος (pólos, “pivot, hinge, axis”), from Proto-Indo-European *kʷel- (“to turn”). Associated with pull (verb) by folk etymology.

来源：wiktionary