流电的

The magnets of BLDCM are felted with featheredge of the motor, and then are machining.

摘直流电动机的磁钢需和薄壁磁轭粘接，并在粘接后还机械加工。

AC Milliammeter, Model J0414, is suitable for the laboratories of middle schools and polytechnic schools to measure current intensity in the AC circuit.

J0414型交流毫安表适用于学、专等实验室测量交流电路的电流强度。