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breechblock英英字典_breechblock剑桥英语解释_breechblock柯林斯英文解释_94生活常识网有道词典
94生活常识网有道词典

breechblock

B 开头单词

柯林斯词典

    breechblock /ˈbriːtʃˌblɒk/

  • 1. N a metal block in breech-loading firearms that is withdrawn to insert the cartridge and replaced to close the breech before firing 枪闩

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