英语词汇“barrel extension”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	barrel extension
释义	barrel extension barrel extension [′bar·əl ik′sten·shən] (ordnance) Metal projection fixed to the rear of the barrel in certain automatic guns; extends backward and holds the breech locked against the gas pressure in the chamber when the gun is fired.
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