... 及刀口 Knife Edges 刀口防护 knife guards 刀口支撑 knife edge support ...
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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.
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