Tuesday, April 23, 2024
问题:接触电压限值(touch voltage limit)
Friday, March 8, 2024
Wednesday, April 3, 2024
Tuesday, April 23, 2024
Monday, April 15, 2024
Friday, March 22, 2024
Tuesday, April 23, 2024
Wednesday, April 3, 2024
问题:操作超高的基准面及操作高度和操作超高高度是怎样确定的?
Tuesday, April 23, 2024
Wednesday, April 3, 2024
Monday, April 15, 2024
Tuesday, April 23, 2024
Monday, April 15, 2024
问题:预期接触电压(prospective touch voltage)
Friday, March 22, 2024
Friday, March 8, 2024
Tuesday, April 23, 2024
Tuesday, April 23, 2024
Wednesday, April 3, 2024
问题:在三相负载中,如每一相负载的大小相等、性质相同,则称其为();否则,就为()。
Wednesday, February 7, 2024
问题:建筑安装工程质量验收项目划分为()、()、()等三大部分组成。
Friday, March 8, 2024