“油套环空”的概念、定义、翻译、参考文献-科学参考

单词	油套环空
释义	油套环空 Encyclopedia 工学油套环空释 casing-tubing annulus油套环空在下入生产管柱的油井井筒中，位于套管内的油管与套管之间的环形空间。
随便看	functorial isomorphism functoriality functorial limit functorial map functorial morphism functorial property functorial transformation functor language functor of diagrams functor of families functor of several variables functor of the second order functor of the third order functor preserving limit functor Tor fund accounting fundamental fundamental absolute retract fundamental algebraic subvariety fundamental astrometry fundamental astronomical constant fundamental astronomy fundamental attribution error fundamental basis fundamental bass

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