主机由电机直接启动运转，差速器的调速及转鼓转速的调整由变频器来完成。
Host by motor direct start running, differential speed and drum rotational speed adjustment accomplished by frequency converter.
找出影响干燥速率的因素有：操作气速，转鼓转速，热风温度，物料形状，物料特性等。
The main factors which had influence on drying rate were found: the operating air velocity, the speed of rotating drum, the temperature of air flow, the shapes and characteristics of materials.
涡电流隔离器自从20世纪90年代早期就开始得到使用，它是由长瓶状转鼓内的一个快速旋转磁力转子组成的，转鼓的旋转速度会较慢。
Eddy-current separators, in use since the early 1990s, consist of a rapidly revolving magnetic rotor inside a long, cylindrical drum that rotates at a slower speed.
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