问题:电路中某两点间在一定电压作用下决定电流强度的物理量叫()。...
Friday, September 16, 2022
Friday, September 22, 2023
Sunday, November 20, 2022
问题:进入发电机定子膛内的工作人员,衣袋里不许装有任何()和(),并且...
Friday, September 16, 2022
问题:引用误差是指绝对误差与侧量上限或量程之比值,以百分数表示。...
Saturday, February 10, 2024
Friday, September 16, 2022
Friday, September 16, 2022
问题:在具有电阻和电感的电路中,电压与电流的乘积为()。...
Friday, September 16, 2022
Friday, September 16, 2022
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Sunday, May 28, 2023
问题:计算题:一台90KW异步电动机,相电压220V,功率因数0.85...
Friday, September 16, 2022
Friday, September 16, 2022
问题:电路发生串联谐振时,电路总阻抗的数最(),且电路中的()最大。...
Sunday, May 28, 2023
Friday, September 16, 2022
问题:交流接触器型号CJX1-45/22的意义为:C()、J()、X(...
Friday, September 16, 2022
问题:热继电器对起动频繁,重载运行的电动机不能起到充分的保护作用。...
Tuesday, December 13, 2022
Tuesday, September 13, 2022
问题:线路若必须通过热源时,导线周围的温度不得超过()℃并作()处理。...
Tuesday, December 13, 2022