Friday, October 18, 2024
问题:矿渣硅酸盐水泥、火山灰质硅酸盐水泥、粉煤灰硅酸盐水泥和复合硅酸盐水泥的强度等级分为哪几级?...
Sunday, May 4, 2025
Wednesday, May 21, 2025
Friday, October 18, 2024
Wednesday, May 21, 2025
Sunday, May 4, 2025
Tuesday, May 7, 2024
Sunday, November 24, 2024
问题:压缩机附属设备的安装中,空气吸入口应安装过滤器或筛网;高架平台的梯子倾斜不应大于多少度?...
Sunday, May 4, 2025
问题:有一单相回路(如BV-3*2.5mm2)导线穿管敷设在墙体或砼现浇板内,其安全载流量允许能在多少安培左右?...
Tuesday, November 12, 2024
问题:泡沫灭火系统应对施工质量进行验收,并包括哪些内容?...
Wednesday, October 9, 2024
Saturday, April 13, 2024
Saturday, April 13, 2024
Tuesday, November 12, 2024
Thursday, July 4, 2024
Tuesday, November 12, 2024
Saturday, March 16, 2024
问题:空调冷热源与辅助设备安装的安全和环境保护措施有哪些?...
Sunday, May 4, 2025
问题:同一建筑物,构筑物的三相五制供电电线绝缘层颜色选择应有何规定?...
Sunday, May 4, 2025
问题:为什么不允许将塑料绝缘导线直接埋置在水泥或抹灭层内作暗线敷设?...
Friday, December 29, 2023