问题
问答题 简答题
晶体管式弧焊电源的工作原理是什么?
答案
参考答案:晶体管在主电路中起“电子开关”或“线性放大调节器”的作用,以“开关式”或“模拟式”晶体管组和闭环反馈对外特性及输出电流进行控制。
晶体管式弧焊电源的工作原理是什么?
参考答案:晶体管在主电路中起“电子开关”或“线性放大调节器”的作用,以“开关式”或“模拟式”晶体管组和闭环反馈对外特性及输出电流进行控制。
Look at the girl. She is 31 good friend. She is 32 English girl. 33 name is Kate. 34 twelve. My 35 is Fangfang. 36 a Chinese girl. I’m eleven. Kate 37 a small sports collection. She has 38 tennis racket, three basketballs, and five baseballs, but I only 39 a soccer ball. Kate and I both (都) 40 sports every day.
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