The only part of the troughing idler that hs any training effect on the conveyor belt is the center roll indicated by the arrow.
如图中箭头所示：槽形托辊组成中对皮带运行有实质影响的唯一部分就是中心托辊。
The only part of the troughing idler that hs any training effect on the conveyor belt is the center roll indicated by the arrow.
如图中箭头所示：槽形托辊组成中对皮带运行有实质影响的唯一部分就是中心托辊。
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