“orientation sub”的概念、定义、翻译、参考文献-科学参考

单词	orientation sub
释义	orientation sub Encyclopedia 工学定向井工具释 orientation sub钻井定向接头为陀螺测斜仪、随钻测斜仪等测量仪器提供固定方向坐放位置的配套工具。
随便看	special diseases of military flight personnel special distribution bookstore special divisor special divisor class special document special document reading room special domain special drilling casing pipe Special Economic Zone special edition special education special education allowance special education school special effect filter special effect makeup artist special effects synthesis special eigenvalue problem special emergency plan special engineering geotechnical investigation special engineering plastic special engineering plastics special engineering structure special environment flight test special envoy special equation

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。