Placing a smaller gauge or caliber cartridge into a gun( such as a20 gauge shell in a12 gauge shotgun) can result in the smaller cartridge falling into the barrel and acting as a bore obstruction when a cartridge of proper size is fired.是什么意思_Placing a smaller gauge or caliber cartridge into a gun( such as a20 gauge shell in a12 gauge shotgun) can result in the smaller cartridge falling into the barrel and acting as a bore obstruction when a cartridge of proper size is fired.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句