英语词汇downward drilling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	downward drilling
释义	您要找的是不是： downward welding 平焊，俯焊 downward drilling 翻译向下的钻井以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译网络释义 1 [机]?向下钻蚀 ... 向后焊 backhand welding 向下钻蚀 downward drilling 向心泵 centripetal pump ... 短语 1 downward drilling holes 下向钻孔 2 downward drilling to extract 下向抽采钻孔双语例句 1 This paper introduced the technical of using drilling downward hole from working surfale in protective coat bottom tu pull out goaf gas, and the effects were analysed and summarized. 前言：介绍了在被保护层底板巷向保护层工作面施工下向穿层钻孔，抽采保护层工作面采空区瓦斯的具体做法，并对取得的效果进行了分析总结。
随便看	universal appliance universal applicability universal application universal approximation universal arc suppressing reactor universal arithmetic universal arm universal array universal assembly robot universal associative memory universal asthenia universal asymmetric digital subscriber line universal asynchronous digital subscriber line universal asynchronous port universal asynchronous receiver universal asynchronous receiver transmitter universal asynchronous receiver transmitter universal asynchronous receiver/transmitter universal asynchronous receiver/transmitter, UART universal attachment universal authentication universal autocollimator universal auto hydraulic balancing sole attaching machine universal auto hydraulic locating sole attaching machine universal auto hydraulic sole attaching machine

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