“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	canonical correlation analysis canonical correlation coefficient canonical correlation coefficients canonical correlation decomposition canonical correlation decomposition (CCD) canonical correlation variable canonical correlation variables canonical covering canonical curve canonical cut canonical decomposition canonical development canonical deviation canonical differential equation canonical dimension canonical distribution canonical divergence canonical divisor canonical divisor class canonical domain canonical element canonical elements canonical embedding canonical ensemble canonical epimorphism

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