发布时间:2025-01-31 11:53:14
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。
很多人都去滨海新区买房子说未来的大港将是超过浦东看这趋势明年的房价只涨不跌7期房子是真是假什么样的
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