“自由套管”的概念、定义、翻译、参考文献-科学参考

单词	自由套管
释义	自由套管 Encyclopedia 工学套管程序释 free pipe自由套管井口附近未被水泥环有效固定的套管段。
随便看	planetary radio emission planetary raw material planetary ring planetary Rossby wave planetary satellite planetary scale weather system Planetary Science planetary seismology planetary space Planetary Space Science planetary stream planetary system planetary table planetary telescope planetary temperature planetary theory PLAnetary Transits and Oscillations of stars planetary wind planetary wind system planet drilling Planet Earth planetesimal planetesimal accretion planetesimal hypothesis planetesimal theory

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。