Assuming you haven't the space or means to rig up your very own water fountain and courtyard at home, we are left with considering an air-conditioning unit.

假如你家里没有足够的空间，或无力拼凑一个属于自己的喷泉和庭院，那我们就只能考虑空调了。

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It's very important for some petroleum machinery(e. g. drilling rig and pumping unit) to carry on reliability analysis and design of the system of the narrow V type belt drive.

开展窄V带传动系统可靠性分析与设计对于提高钻机、抽油机等石油钻采机械的质量和效益具有重要意义。

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However, the study in the hydraulic top drive only used in the service machine, poor-boy rig, also there have no research on deep and ultra-deep series of hydraulic top drive unit in China.

然而，对液压顶驱的研究，还停留在修井机、和浅井钻机上。国内目前还没有深井和超深井系列的液压顶驱装置。

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Bankston, nominated by the United States of America, for placing their own lives at risk while rescuing survivors from the Deepwater Horizon Mobile Offshore Drilling Unit, in the Gulf of Mexico, following a devastating explosion on the rig in April 2010.

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