“horizontal directional drilling”的概念、定义、翻译、参考文献-科学参考

单词	horizontal directional drilling
释义	horizontal directional drilling Encyclopedia 工学掘进机械释 horizontal directional drilling水平定向钻将一个可调向操控的钻头连接在钻杆组的端部，用于地下水平定向钻孔的机具。是在不开挖地表面条件下，铺设多种地下公用设施（管道、电缆等）的施工设备，广泛用于供水、电力、电信、天然气、煤气和石油等管线铺设施工中。
随便看	chromatographic separation chromatographic workstation chromatographic workstation(Data System) chromatography chromatographyatomic absorption spectrometer chromatography-atomic absorption spectrometry hyphenated analysis for pharmaceuticals chromatography-atomic emission spectrometry hyphenated analysis for pharmaceuticals chromatography-atomic fluorescence spectrometry hyphenated analysis for pharmaceuticals chromatography-atomic spectrometry hyphenated analysis for pharmaceuticals chromatography electrochemical method chromatography-electrochemical method chromatography, expert system on chromatography gas composition measurement chromatography gas logging chromatography-infrared spectrum hyphenated analysis for pharmaceuticals chromatography in polymer characterization chromatography-mass spectrum hyphenated analysis for pharmaceuticals chromatography of histochemistry chromatography reagent chromatograpnic separation technology chromatoid chromatology chromatomap chromatometer chromatometry

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