“mast/derrick”的概念、定义、翻译、参考文献-科学参考

单词	mast/derrick
释义	mast/derrick Encyclopedia 工学井架释 mast/derrick井架在钻井或修井过程中，用于放置天车，悬挂顶驱、游车、大钩等设备，存放钻杆、油管及抽油杆，以便进行起下钻具、钻进、下套管等作业的装置。
随便看	unlocking mark left by the original key unlubricated unlubricated friction Unlucky Uncle Lucky in Love unmagnetized unmagnetized plasma unmanned aerial vehicle unmanned aerial vehicle autonomous control unmanned aerial vehicle command and control system unmanned aerial vehicle communication unmanned aerial vehicle coordinated formation control unmanned aerial vehicle flight unmanned aerial vehicle flight test unmanned aerial vehicle logistics unmanned aerial vehicle ocean observation system unmanned aerial vehicle remote sensing unmanned aerial vehicle sense and avoid unmanned aerial vehicles photography unmanned aircraft unmanned aircraft system integrated simulation unmanned combat system unmanned detection system unmanned factory unmanned LHD unmanned load-hual-dump

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。