The pull rod is screwed into the inside thread of the anchor head.
这是钻杆丝扣油,不能用在钻铤丝扣上。
A dial gauge is screwed into the hydraulic nut face to measure the axial displacement.
将千分表拧进液压螺母面以测量轴向位移。
The kelly then turns the entire drillstring because it is screwed into the top of the drillstring itself.
方钻杆之后带动整个钻柱进行旋转,由于方钻杆是与钻柱的顶部用丝扣连接在一起的。
Secondly, as we go to the more advanced part of the course, we'll take a result from this part of the blackboard, stick it into the second part and keep manipulating, so if I screwed up in the beginning and you guys keep quiet, we'll have to do the whole thing again.
其次,随着我们课程的深入,我们需要把黑板这边的计算结果,抄到黑板的那边,不停地这么做,如果我一开始就写错了,而你们又不出声,我们就得全部重新来过
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