Aiming at the control accuracy of rotational speed resulting from direct current speed regulation system, a direct current speed regulating system depending on CNC is proposed.
针对直流调速系统对转速的控制精度问题，提出了一种采用CNC的直流调速系统。
The switch of the direct current stepless speed regulation is widely used in the electrician switch. The pistol electric drill direct current stepless speed regulation switch belongs to example.
直流无级调速开关在电工开关中有着广泛的应用，手枪电钻的直流无级调速开关便是其中一例。
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