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【提问】请教个问题


AstrayFeB

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使用定装弹药的枪械是可以在真空状态下射击的。但在太空中不行,因为外太空太冷了零下大约270摄氏度的环境会使金属和塑料变得象玻璃一样脆且严重影响弹性,恐怕一开枪抢就被震碎,一拉拉机柄复进簧就折断。

如果解决低温问题在真空条件下对使用定装弹药的枪械机械性能没什么考验,倒是对定装弹药的弹壳有严峻的考验。由于弹壳中不但有发射要还有一些空气(发射药只有几克),如果在真空环境下弹壳就会膨胀变形甚至爆裂。解决办法只有一个,在真空条件下组装弹头、弹壳、发射药和底火(不用担心发射药的燃烧,发射药中含有氧化剂成分),但在真空条件下组装的定装弹就在标准大气压下就会变得干瘪。

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