英语词汇“touchhole”是什么意思，“touchhole”的读音、用法及例句翻译-乐坝网

词汇	touchhole
释义	touch·hole AHD[tŭchʹhōl'] D.J.[ˈtʌtʃˌhəʊl]K.K.[ˈtʌtʃˌhol]n.（名词） The opening in early firearms and cannons through which the powder was ignited.火门：早期火器和大炮中的开口，由此将火药点燃
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