“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	inland open economy pilot area policy inland port inland river inland river excavated -in basin inland river ship navigation environment inland saline aquaculture inland shelf inland ships inland waters fishing inland waterway inland waterway improvements inland waterway navigation inland waterway network Inland Waterway Network Linking up the Five Sea inland waterways inland waterway service area inland waterway shipping inland wetland and watershed ecosystem nature reserve inlay in-layer heterogeneity inlead inleakage inlet inlet additive drag inlet and exhaust gas state

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