“expandable casing”的概念、定义、翻译、参考文献-科学参考

单词	expandable casing
释义	expandable casing Encyclopedia 理学孔内钻具释 expandable casing膨胀套管技术在钻井或修井施工过程中，将套管柱下入井底，用膨胀锥头以液力或机械力的方法使管材永久形变，从而达到增大套管直接的目的，以实现节省井眼尺寸，封堵复杂地层的技术。
随便看	specialized specialized agencies of the United Nations specialized archives retention schedule specialized athlete specialized character specialized climate regionalization specialized contracting specialized core course specialized counter-defense specialized course Specialized Course in Audio-Visual Education in National Institute of Social Education Specialized Course of Film Screenwriting and Editing in Institute of Performing Arts specialized defense specialized design for urban rail transit specialized dictionary specialized disease prevention and treatment institute specialized famer cooperative policy specialized garden specialized garden of flowers specialized gauge transformation specialized hospital pavilion specialized household specialized insurance asset management company Specialized Jobs specialized learner's dictionary

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