“油管头”的概念、定义、翻译、参考文献-科学参考

单词	油管头
释义	油管头 Encyclopedia 工学井口装置释 tubing head油管头油井生产管柱最上层装置。用于悬挂油管及密封油管与套管之间环形空间，上部接采油树配合生产。
随便看	proposition or example as negative evidence proposition or example as positive evidence propositions or examples as evidence propotional relationship of national economy propoxur proppant prop people propranolol proprietary thesaurus proprietorship proprioception proprioceptive reflex in respiratory muscles proprioceptor Prop root prop root proprotein convertase subtilisin/kexintype 9 props props of Kazuo Changchunyuan Opera Troupe propulsion propulsion-closer propulsion system propulsion system hot test Propus propylene propylene antifungal

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