“钻具止回阀”的概念、定义、翻译、参考文献-科学参考

单词	钻具止回阀
释义	钻具止回阀 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	Ya Ming Yami's scaly-toed gecko Yam Kim-fai Yamoussoukro yam root lesion nematode disease Yamuna River Yamzho Yumco Yan Yan-1 Well Yanagi Miwa Yanai Wataru Yan'an Yan'an Academy of Sciences yanan coal measures Yan'an Constitutional Promotion Association Yan'an Drama Movement Yan'an Film Studio Yan'an News Photography Agency Yan'an Photography Team Yan'an Pingju Opera Research Institute Yan'an Revolutionary Memorial Hall Yan'an Revolutionary Sites Yan'an Shi Yan'an Taofen Bookstore Yan'an University

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。