“drill string non-return valve”的概念、定义、翻译、参考文献-科学参考

单词	drill string non-return valve
释义	drill string non-return valve Encyclopedia 工学井下工具释 drill string non-return valve钻具止回阀在内防喷系统中，连接于钻杆和钻铤间的防喷装置。
随便看	hydroiodination hydroisopleth hydro-junction hydrokinetics hydrolase hydrolase; hydrolytic enzyme hydrolocation hydrolocator hydrological cableway flow system equipment hydrological cycle hydrological data series hydrological data series for water conservancy planning hydrological data transmission hydrological drought hydrological effect hydrological effect of agricultural measures hydrological effect of forest hydrological effect of reservoir Hydrological effect of urbanization hydrological effect of water transfer hydrological elements hydrological experiment hydrological geodesy hydrological inscription in ancient China hydrological management system in China

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