Tuesday, September 13, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
生产设备的维护保养就是指当设备发生故障时为恢复其功能所进行的检修...
Sunday, September 11, 2022
Sunday, September 11, 2022
Tuesday, January 10, 2023
Sunday, September 11, 2022
架空绝缘电线对建筑物的垂直距离为2.5米,水平距离为()米。...
Sunday, September 11, 2022
铝导线截面积为35mm<sup>2</sup>,钢芯截面为6mm...
Sunday, September 11, 2022
稳压二极管是利用()情况下管子电流变化很大而电压基本不变的这一特...
Sunday, September 11, 2022
保护措施和保护电路的电连续性检查是应检查防止直接接触的防护措施。...
Sunday, September 11, 2022
进线保护导体和相关的裸导电部件之间不应超过0.1欧姆。...
Tuesday, December 19, 2023
Wednesday, December 27, 2023
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
Tuesday, September 13, 2022
交流电焊机的电动铁芯的制动螺钉或弹簧过松会出现()的现象。A、焊接电流忽大忽小B、焊接时会有嗡嗡声C、焊接电流过小...
Monday, January 23, 2023
Sunday, September 11, 2022
十进制数255编成二进制码时应该是()。A、11111B、111111C、1111111D、11111111...
Saturday, May 4, 2024