发布时间:2025-01-24 03:11:50
对,提高设计标准,适当增加雪荷载,提高服务年限,结构及维护材料满足地区雪荷载最低标准值。这样就不会被雪压塌了。
朋友们框架房已建好基础没有做避雷焊接有什么补救措施懂的朋友请常细讲解认候佳音谢了
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