设有灯光对线装置，并能无级调节上刀架的行程。

The stroke of knife beam can be adjusted in stepless mode.

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机修工把小刀架在肩膀上问，““切下来就跑”，我们干这活的最好记录是多少？”

The mechanic calls back over his shoulder, "What's our best time to date for a cut-and-run?"

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当垂直刀架下降时，由于摩擦力阻碍其下降，使丝杆的上螺旋面螺母的下螺旋面相接触，丝杆螺母的间隙在下面。

When the vertical turret decline, due to friction hinder its decline, the screw on helical screw nut under the physiognomy contact screw nut in the space below.

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