“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	Volans volatile volatile basic nitrogen volatile compounds of aquatic product volatile data volatile elements volatile fatty acid volatile fission products volatile instant messaging volatile matter of coal volatile memory volatile oil volatile oil reservoir volatile organic compound emission of wood-based panels volatile organic compounds volatile organic compounds analysis volatile organic compounds catalytic oxidation treatment volatile organic compounds condensation treatment volatile organic compounds control volatile organic compounds membrane separation treatment volatile organic contaminants volatile permeable ink volatile powder volatile substance volatility

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