“滚子减阻扶正器”的概念、定义、翻译、参考文献-科学参考

单词	滚子减阻扶正器
释义	滚子减阻扶正器 Encyclopedia 工学井下工具释 friction reduction stabilizer滚子减阻扶正器将钻柱与井壁间的滑动摩擦转变为滚动摩擦，用以减小钻柱下行阻力的工具。
随便看	sampling frame sampling frames error sampling frequency sampling function sampling head Sampling homogeneity cases sampling in adit sampling inspection sampling inspection by attributes sampling inspection by variables sampling inspection having desired operating characteristics sampling inspection of bulk materials sampling inspection passed sampling inspection plan sampling inspection with adjustment sampling inspection with screening sampling integrator sampling interval sampling interval selection sampling investigation sampling item sampling map in ore district sampling method sampling method for investigation sampling methods

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