If we directly start the belt-driver which is driven by electric-roller, it can neither adjust speed according to the proportion of materials, nor prolong the life of electric-roller.
通过电动滚筒驱动的皮带机，如果直接起动，无法根据物料比重调节速度，无形中造成了电能的浪费，而且会缩短电动滚筒的使用寿命。
If we directly start the belt-driver which is driven by electric-roller, it can neither adjust speed according to the proportion of materials, nor prolong the life of electric-roller.
通过电动滚筒驱动的皮带机，如果直接起动，无法根据物料比重调节速度，无形中造成了电能的浪费，而且会缩短电动滚筒的使用寿命。
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