“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	value theory Value the Virtuous Personage value variable value weighted rate of return value with sign value zero valuing legality and disvaluing morality valuing self and weighting life valuing stumpag valvae valval valvar valvate valve valve and meter valve arrester valve dosimeter valve for pumping station valve mechanism valve mechanism without camshaft valve of the rectifier valve opening valve positioner valve regulated lead acid battery valve regulated lead-acid battery

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