发布时间:2025-01-31 13:10:51
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。
南京哪租房便宜要求到鼓楼新街口方便有地铁或者公交能直达不转乘的
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