复梁式双盘等臂天平，采用钢带弹性作支撑，无刀口磨损现象发生。
This type of equal arm balance with double beam and pan adopts flexible steel band as support without abrasion to the edges of the knife.
该机的螺旋叶片采用盘形钢带轧制或单片组焊而成的整体连续叶片。
The screw plate is made of tray steel or welded single piece steel, so it is a whole one and continuous.
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