“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	nonreciprocal non-reciprocal property non-reciprocity nonreciprocity non-recognition doctrine nonrecurrent non-recurrent burst nonrecurrent chain non-recurrent disturbance nonrecurrent point nonrecurrent state Non-recurrent Traffic Congestion nonrecurring non-recursive non-recursive algorithm non-recursive filtering methods non-recursively enumerable language non-recursively enumerable language, non-r.e. language non reducing sugar non-reducing sugar nonreducing sugar nonreductive polyacrylamide gel electrophoresis non-redundancy non-redundant nonredundant aperture masking

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