发布时间:2025-01-18 21:14:08
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。
装修中想要把电脑中网络电影放到客厅大液晶电视上看要用什么线连接那门连接
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