Wear a single finger gloves, spread evenly rods and screws in each tire and wheel gestational age between the metal contact surface.
2
需要更换螺丝杆刀头时，只要轻轻向后拉动卡环，调转螺丝杆再放开卡环即可。
When the driver bit of the screw rod needs to be replaced, as long as the clip ring is gently pulled downward. The screw rod is turned and the clip ring is released.
3
杆的位置由千分尺螺丝规或球度计确定。
The position of the rod is determined by a micrometer screw gauge or spherometer.
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