英语词汇double-action pump是什么意思，double-action pump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	double-action pump
释义	double-action pump　【化】双作用泵; 双动泵; 双动式泵
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