钢制动轮外圆表面经淬火处理。
因此，泵体与螺杆外圆表面及螺杆与螺杆间隙应尽可能小些。
Therefore, the pump body and screw cylindrical surface and screw and screw clearance should be as small as possible.
因此，泵体与螺杆外圆表面及螺杆与螺杆间隙应尽可能小些。
Therefore, the pump with the screw and screw and screw cylindrical surface gap should be as small as possible more.
如加工轴类工件时，总是先加工中心孔，再以中心孔为基准加工外圆表面。
When machining shaft parts, always machining center hole, and then to the center of the center hole for the processing of the outer surface.
滚研机是小直径工件外圆表面研磨加工设备之一，该机导轮表面形状直接影响加工精度。
The roll lapping machine is one of the equipments processing the excircle surface of minor diameter workpiece by lapping. The working accuracy is affected directly by the guide wheel of this machine.
同时还利用计算机图形学原理，对管件外圆表面直线段、弯曲段的三维绘制进行处理分析。
Meanwhile, the drawing regulations about line segments and curly segments of tube bending surface are analysed.
启动前应除去减速机输入轴迷宫密封端面和输出传动法兰迷宫密封外圆表面，以及呼吸器上的防锈包装及胶带。
Prior to startup, get rid of tape from labyrinth seal end of input shaft, labyrinth seal outer surface of output drive flange and respirator.
平面、外圆、内孔、凹槽及其他较难测量的表面。
Plane, outer circle, inner hole, groove and other surfaces that are difficult to measure.
平面、外圆、内孔、凹槽及其他较难测量的表面。
Plane, outer circle, inner hole, groove and other surfaces that are difficult to measure.
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