发布时间:2025-01-19 02:39:22
1/6-1/4内。为保证梁底方木安装方便,弧形梁模板弧长控制在1.2m1.5m左右为宜。,三铰拱或弧形轻型桁架,至于拱高,可在1/6-1/4内取值,南方防风,北方防雪。
降水井附近有泉眼降水时会对泉眼造成什么影响泉眼位置大概在40米若造成影响泉眼如何处理
2025-01-19 02:39:22 2025-01-19 02:39:22 2025-01-19 02:39:22 2025-01-19 02:39:22 2025-01-19 02:39:22 2025-01-19 02:39:22刚买的房子准备装修客厅有两个小窗子光线很暗想把窗子加宽会影响外墙物业不允许怎么办
2025-01-19 02:39:22 2025-01-19 02:39:22木工仿形车床加工时候出现跳动车大概1米长的楼梯柱中段时候出现猛烈跳动
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