“塔式钻具”的概念、定义、翻译、参考文献-科学参考

单词	塔式钻具
释义	塔式钻具 Encyclopedia 工学钻井装备释 tower assembly塔式钻具由下大上小的几段不同尺寸钻铤组成的钻具组合。利用近钻头端大尺寸钻铤的钟摆力进行纠斜。
随便看	geography of river transportation geography of rural household geography of rural poverty geography of surfaces Geography of the Countries geography of transportation sector geography of tropics geography of urban transportation Geography Records of Western Regions geo-grid map Geogrids GEOHAB geoheritage geoheritage contrast geoheritage database geoheritage protection level geoheritage protection plan geoheritage qualitative evaluation geoheritage reserve geoheritage site geoheritage survey geoheritage utilize Geoid geoid geoidal height

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。