Three types of adjustable turning rolls: manual lead screw adjusting, manual bolt shifting and electric sliding plate shifting.

三种可调式滚轮架：手动丝杆可调式、手动螺栓移位式和电动滑板移位式。

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This equation is useful in determining the kinematic linkage between the lathe spindle and the lead screw and enables proper selection of the gear train between them.

这公式在决定车床心轴和丝杆之间的运动学关系时很有用，并且提供了正确挑选它们之间轮系的方法。

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As previously mentioned, the axial feed is automatically generated when cutting a thread by means of the lead screw, which drives the carriage.

如前所述，当依靠驱动大拖板的丝杆切削螺纹时轴向进给是自动产生的。

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