“tubing head”的概念、定义、翻译、参考文献-科学参考

单词	tubing head
释义	tubing head 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	powder diffraction file powder diffractometer powder dividing doses powder down powdered activated carbon powdered activated carbon treatment process powdered drink powdered rubber powder extrusion molding powder feed rate of metal melting deposition powder fertilizers machinery powder fire extinguishing agent powder for coating powder for dry seed treatment powder forging powder forming powder identification powder impetus powdering powder injection molding powder insulation powder jet deep mixing reinforcement machine powder metallurgical gear powder metallurgy powder metallurgy alloys for electrical applications

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。