“iron roughneck”的概念、定义、翻译、参考文献-科学参考

单词	iron roughneck
释义	iron roughneck Encyclopedia 工学井口工具释 iron roughneck铁钻工由位于上部的旋扣钳和位于下部的液动扭矩钳组成的钻井机械装置。
随便看	F. R. Helmert (1843—1917) Fria friability friable Sands friable sands friar fricative Fricke Fricke dosimeter Fricsay Ferenc frictiograph friction frictional angle frictional coefficient frictional force frictional force microscopy frictional lichnoid eruptions frictional pressure drop frictional pressure drop in two-phase flow frictional properties of fiber frictional sliding frictional soil frictional test in plastic forming friction and wear properties of ceramics friction behavior

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。