“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	line of cusps line of declination line of degeneration of type line of discontinuity line of electric force line of flow line of force line of horizon line of integration line of intersection line of inversion line of latitude line of longitude line of magnetic induction line of magnetization line of nodes line of position line of projection line of regression line of right ascension line of sight line-of-sight line-of-sight angle line-of-sight component line of sight guidance

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。