这根皮带一般也驱动交流发电机工作，皮带的张紧度通过在支座上摆动发电机的位置来进行调整。
Usually the same belt drives the alternator, and belt tension is adjusted by swinging the alternator on its mounting.
摆动机头连接精密轴承支座结构，使切割效果令人满意。
Swinging nose connection with the precision bearing branch structure makes the effect of cutting to be satisfying.
千斤顶可在前支座内作水平、垂直两个方向转动，而在后支座内可作上下、左右摆动。
The jack can rotate in both horizontal and vertical directions in the front bearing and can swing up and down and right and left in the rear bearing.
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