问题:3KV室内配电装置网状遮拦裸导体至地面的高度最小允许距离为()。A、1875mmB、2375mmC、2425mmD、2725mm...
Thursday, March 28, 2024
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Saturday, March 23, 2024
问题:在板框式滤油机中,框板能否装反?装反会有什么后果?如果滤油纸的孔倒装会有什么后果?...
Thursday, February 22, 2024
Tuesday, October 17, 2023
Thursday, February 22, 2024
问题:直接接触器容易损坏还是交流接触器容易损坏?为什么?...
Thursday, February 8, 2024
Saturday, March 23, 2024
问题:线圈中感应电动势的大小和线圈内磁通变化的速度()。A、相等B、相反C、成正比D、成反比...
Sunday, February 11, 2024
Thursday, March 28, 2024
Thursday, March 28, 2024
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Monday, July 17, 2023
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问题:硬母线是怎样连接的?为什么不同金属的母线连接会氧化?怎样防止?...
Sunday, February 11, 2024
Friday, August 11, 2023
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