英语词汇“pilot hole of shaft, test hole of shaft”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	pilot hole of shaft, test hole of shaft
释义	pilot hole of shaft, test hole of shaft 井筒检查孔; 新井开凿前，为核实井筒剖面资料,编制施工设计方案,在井筒附近追加施工的钻孔。
随便看	mark-sensing mark sensing marksensing mark-sensing card mark sensing card mark sensing column mark-sensing column mark sensing information storage, movable mark sensing machine mark-sensing machine mark sensing punch mark-sensing punch card mark-sensing row mark sensing row mark sensing sheet mark sensor circuit mark sentinel marks for axle replacement marks for measuring velocity marks for treatment Markshall markshausen mark sheet marksheet mark sheet reader

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