英语词汇封口机是什么意思，封口机的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-电脑手机教程网

单词	封口机
释义	DEFINITIVE EXAMPLES 权威例句〔seal〕A device that joins two systems or elements in such a way as to prevent leakage.封口机：用这种方式连接两个系统或元素以防渗漏的装置美国传统
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