“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	word sequence Words explained on zizhitongjian words have no text line but not far words information processing Words in Fragments word sketch engine Words Meaning of Chinese Words of Tone-system words or phrases denoting the verb state in a sentence word stem completion word stress word structure word tone wordy seon worere work workable magnet work-accelerated electron gun work activities work area workaround Work Arrangement work at height work-based learning workblank

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