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单词 breechblock
释义

Definition of breechblock in English:

breechblock

nounˈbriːtʃblɒkˈbritʃblɑk
  • A metal block which closes the aperture at the back part of a rifle or gun barrel.

    枪闩,炮闩

    Example sentencesExamples
    • The extractors eject the cartridge case and retain the breechblock in the fully open position.
    • Tip the end of the breechblock downward enough for the striker to slide out the back of the block.
    • In addition to new breechblocks and hammers, the older extractor was replaced with a newer design.
    • Lowering the operating lever dropped the breechblock and extracted the spent cartridge.
    • This caused delay of several days, but once the new breechblocks were completed one by one the guns were rushed to use.

Definition of breechblock in US English:

breechblock

nounˈbrēCHbläkˈbritʃblɑk
  • A metal block which closes the aperture at the back part of a rifle or gun barrel.

    枪闩,炮闩

    Example sentencesExamples
    • In addition to new breechblocks and hammers, the older extractor was replaced with a newer design.
    • Tip the end of the breechblock downward enough for the striker to slide out the back of the block.
    • This caused delay of several days, but once the new breechblocks were completed one by one the guns were rushed to use.
    • The extractors eject the cartridge case and retain the breechblock in the fully open position.
    • Lowering the operating lever dropped the breechblock and extracted the spent cartridge.
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更新时间:2024/11/11 6:24:01