“casing head”的概念、定义、翻译、参考文献-科学参考

单词	casing head
释义	casing head Encyclopedia 工学井口装置释 casing head套管头由多个法兰焊接于密封钢管侧壁的井口装置。是套管柱结构的最上层部件。
随便看	complement of a number complement of a relation complement of a set complement of a subgraph complement of a submodule complement of a subset complement of a subspace complement of credibility complement receptor，CR complement-reducible graph complement relation complement set complement subgraph complement submodule complement subset complement subspace complement system complement theorem completability completable completable topological group completable topological space complete complete Abelian group complete Abelian variety

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