Spiral roller: Used to remove the sticky material on the conveyor belt, to keep an area clean.
螺旋托辊：用于清除输送带上的粘料，保持带面清洁。
At last, cylinder of double spiral roller grinded-paste machine is produced by centrifugal casting.
最后，通过离心铸造生产出双螺旋辊式磨浆机筒体。
The thread of abraded unequal spiral shifting roller is actually a "uniform increasingly dispersing-ratio spire".
经过磨损的不等距螺旋输送辊的螺纹是一条“等变距螺旋线”。
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