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There is some trouble in the borehole. Don't leave the rig floor.
井下出现复杂情况, 不要离开钻台.
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Only a driller is on the rig floor now.
现在只有司钻在钻台上.
The correct size and type bit breaker is to be on the rig floor.
钻台上有合适尺寸和种类的钻头盒.
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