square wave AC 方波交流 ; 矩形波交流电
square wave ac pulse 方波交流脉冲
square-wave AC welding are 方波交流焊接电弧
square-wave ac power source 方波交流电源
ac square-wave 交流方波
ac square wave 交流方波
ac square wave power source 交流方波电源
Coloured stainless steel may be prepared in brown, blue, yellow, red, or green by square-wave AC electrolytic colouring.
用交流方波电解着色法可以制备茶色、蓝色、黄色、红色、绿色等颜色的不锈钢。
A square-wave AC high-frequency welding power source is composed of the square-wave AC high-frequency generator and DC welding machine controlled by thyristor.
将晶闸管直流焊机与方波交流高频发生装置组合，构成方波交流高频焊接电源。
This paper deals with an AC servo system with permanent magnetic brushless motor driven by square wave current.
研究了方波电流驱动的永磁无刷电机交流伺服系统。
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