“repair the oil well casing by bulged”的概念、定义、翻译、参考文献-科学参考

单词	repair the oil well casing by bulged
释义	repair the oil well casing by bulged Encyclopedia 工学修复油井套管释 repair the oil well casing by bulged套管胀修依靠钻具自身的重量或下击，迫使下部梨形胀管器的锥形头部楔入变形套管部位进行挤胀，以恢复其内通径要求尺寸的作业。
随便看	definite eigenvalue problem definite form definite inflorescence definite integral definite kernel definite linear form definitely divergent sequence definiteness definite operator definite problem definite quadratic form definite restriction definite sign definite S integral definite S-integral definite subspace definite - time definite time definition definitional domain definitional equivalence definitional identity definitionally equal definitional occurrence definition by abstraction

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