| 单词 | breechloading |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔bolt〕A sliding metal bar that positions the cartridge in breechloading rifles, closes the breech, and ejects the spent cartridge.枪栓，枪机：装在后枪膛中为子弹定位的滑动金属条，可关闭枪膛和输入将用的子弹美国传统〔breechblock〕The metal part that closes the breech end of the barrel of a breechloading gun and that is removed to insert a cartridge and replaced before firing.炮闩，枪闩：关闭后膛装弹枪的枪后部的后膛的金属部分，可以拆卸下来装子弹并在射击前被替换美国传统 |
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