For a moment or two he seemed quite lost in contemplating the pace of this ideal timepiece, and sat looking at the boy as if his face were the dial.
在一两秒钟的时间内,他似乎完全出神地在思考着这只理想的钟走动的快慢,并坐在那里看着孩子,仿佛他的脸是针盘似的。
At this point the dial gauge extension is positioned exactly at a right Angle to the front face of the pinion head.
达到此点时,百分表加长杆正好与小齿轮头部的前面成直角。
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。
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