“deep shaft sinking technique in ancient China”的概念、定义、翻译、参考文献-科学参考

单词	deep shaft sinking technique in ancient China
释义	deep shaft sinking technique in ancient China Encyclopedia 工学中国古代深井开凿技术释 deep shaft sinking technique in ancient China中国古代深井开凿技术中国古代开凿深井，主要用于开采井盐卤水，称盐井；后来发展到开采天然气，称火井。
随便看	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 fundamental bond fundamental bracket Fundamental Catalogue fundamental cell fundamental circle fundamental circuit fundamental class fundamental cocycle fundamental cohomology class

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