“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	the structure of the traditional photographic materials The structure of tourism consumption the structure with the same equivalent point the stubborn lion dance The Student's Magazine The Studio the Studio of true connoisseurship The Study Center of History of Sci-Tech and Cultural Heritage in Donghua University The Study of Ancient Chinese the Study of Books and Teachers of Sarvastivada The Study of Children's Psychology the Study of Chinese Ancient Myth The Study of Chinese Complex Sentences The Study of Chinese Film and Television The Study of Chinese Film History The Study of Chinese Grammar The Study of Chinese TV The Study of Ethics in the P.A. Curriculum The Study of Mathematically Precocious Youth The Study of Pre-Modern Chinese Vocabulary The Study of Sociology The Study of The Book of Songs The Study of the Western Xia Regime The Study on Chinese Painting Techniques The Study on Imagery in the Book of Songs

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