five roll idler 五节托辊
Our large roll feeder is a high performance servo motor driven model with a pneumatically pre - loaded idler roller for handling wider, heavier materials.
我们公司的大型的滚筒给料机是一款高性能设备，该设备由伺服电机驱动，装有一个气动的辊筒用于处理更宽，更重的材料。
Now the training effect takes place and the conveyor belt does what it is told to do by the center roll of the troughing idler.
现在实质性的影响发生了，皮带会延着中心托辊设定的路线运行。
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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