The drill string is rotated by rotary table.
钻柱是由转盘驱动的。
Position permanent guide base (PGB) below rotary table.
在转盘下安放永久导向基板。
Remove breaker and carefully lower bit through rotary table.
卸掉卸扣器，下放钻柱让钻头缓慢通过转盘。
The utility model relates to a dinner table, in particular to a rotary dinner table.
本实用新型涉及一种餐桌，具体提供一种旋转餐桌。
The utility model relates to a dinner table, in particular to a rotary dinner table.
本实用新型涉及一种餐桌，具体提供一种旋转餐桌。
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