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单词 block and tackle
释义

Definition of block and tackle in English:

block and tackle

noun
  • A lifting mechanism consisting of ropes, a pulley block, and a hook.

    滑轮组

    Example sentencesExamples
    • Since the Egyptians made no use of block and tackle methods, or cranes, it is usually assumed that wooden and bronze levers were used to manoeuvre the blocks into position.
    • When thirty feet of ice stood in their way, they used ice anchors, lines, and a block and tackle to pull the 3,000-pound craft out of the water, across the ice and into the next channel.
    • A block and tackle can contain as many pulleys as you like, although at some point the amount of friction in the pulley shafts begins to become a significant source of resistance.
    • We have bent a number of bows using a steam box and a jig with a block and tackle and pulleys to bend them around a form.
    • There was clearly no time to rig a block and tackle to winch the casualty on board.
    Synonyms
    system of pulleys, hoisting gear, pulley, hoist, crane, winch, davit, windlass, sheave

Definition of block and tackle in US English:

block and tackle

nounblɑk ænd
  • A mechanism consisting of ropes and one or more pulley-blocks, used for lifting or pulling heavy objects.

    Example sentencesExamples
    • Since the Egyptians made no use of block and tackle methods, or cranes, it is usually assumed that wooden and bronze levers were used to manoeuvre the blocks into position.
    • There was clearly no time to rig a block and tackle to winch the casualty on board.
    • A block and tackle can contain as many pulleys as you like, although at some point the amount of friction in the pulley shafts begins to become a significant source of resistance.
    • When thirty feet of ice stood in their way, they used ice anchors, lines, and a block and tackle to pull the 3,000-pound craft out of the water, across the ice and into the next channel.
    • We have bent a number of bows using a steam box and a jig with a block and tackle and pulleys to bend them around a form.
    Synonyms
    system of pulleys, hoisting gear, pulley, hoist, crane, winch, davit, windlass, sheave
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更新时间:2024/10/19 14:27:32