“井下增压射流辅助破岩钻井装置”的概念、定义、翻译、参考文献-科学参考

单词	井下增压射流辅助破岩钻井装置
释义	井下增压射流辅助破岩钻井装置 Encyclopedia 工学钻井新技术与装备释 downhole pressurized jet assisted drilling system井下增压射流辅助破岩钻井装置通过安装在钻头上方的井下增压装置，将钻柱中循环的部分钻井液增压后形成增压射流，经钻头的超高压喷嘴喷出，冲击井底后直接或辅助钻头破碎岩石，将水力破岩与机械破岩紧密结合起来，达到提高钻速目的的钻井装置。
随便看	command dispatching system for space mission command economy commander-based military organization system commander-general commander in charge system Commander in chief commander-in-chief commander-in-chief in ancient China Commander-in-chief of the capital city and its environs commander-in-chief of the Chahar Region commander-in-chief, supervisor-in-chief or eunuch commissioner Commander of a military organization Commander Shostakovic Commander Unequalled in Honor commandery prince command guidance Commandino Commandino theorem command interface command interpreter command language command-line interface command management command module command of health service

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