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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The children ran a rig upon the new boy.

孩子们作弄新来的男孩。

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One of Dee's friends was an Indian boy whose father worked on an oil rig.

ECONOMIST: Dee Brown

Clad in brilliant red EMI shielding and featuring glowing LED lighting, the Sound Blaster Zx is the bad boy of the bunch, with an attention-grabbing design that ideally complements any power gaming rig.

ENGADGET: Creative reveals Sound Blaster ZxR, Zx, and Z PCI-Express sound cards, pumps up the volume