发布时间:2025-01-19 02:30:23
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。
我新装修的房子已即将入住最近安装了空调后总是开一会儿后就跳闸过一会儿就自动好了怎么回事
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