1.The main motor adopts frequency control of motor speed to save more electricity and regulate speed more freely.
主电机采用变频电机，使您更省电，调速更自如。
2.We use belt or cogwheel to regulate speed for the main shaft , ball lead screw and stepping motor for operating plat form .
主轴采用皮带或齿轮变速，工作台采用滚珠丝杆，步进电机；
3.Net belt with inner-circulation, ad just speed steplessly of frequency conversion to regulate speed.
网带内循环，无级调速或变频调速。
4.Study of PWM Regulate Speed System in Direct with Minicomputer
微机控制直流脉宽调速系统研究
5.Regulate-speed Principle and Construction of the Motor with Double-rotors
双转子电动机的调速原理及结构
6.Study on fan hydraulic drive system of temperature regulate speed
风扇温控调速液压传动系统研究