“landing joint”的概念、定义、翻译、参考文献-科学参考

单词	landing joint
释义	landing joint Encyclopedia 工学套管程序释 landing joint联顶节下套管时接在最后一根套管上用来调节套管柱顶面位置，并与水泥头连接的具有严格长度的短套管。
随便看	knot singularity knot sum knot symmetry knot table knotted knotted curve knotted polygon knotted sphere knot tenacity knot theory knot type knot vector knotwork technology knower paradox know-how knowledge knowing speech Knowing What Students Know knowledge knowledge absorption knowledge acquisition knowledge acquisition from text knowledge aggregation knowledge alliance knowledge architecture knowledge asset

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。