英语词汇double jack怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	double jack
释义	double jack 简明释义双手锤：指一种工具，有两个锤头，用于敲击或敲打物体。双塞孔：指一种音频插头，有两个插孔，用于连接音频设备。双语例句 1 As a new installation method for big structures, double girder integral lift is mainly composed of fixed girder, moveable girder, work anchor, moveable anchor, jacks and guide rail. 双梁式整体提升法是一种新型的大型结构安装方法，主要由固定梁、活动梁、钢绞线、工作锚、工具锚、导向装置及千斤顶组成，与现在常用的安装方法相比，具有价廉、安全、高效和易推广等特点。
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