发布时间:2025-01-19 02:21:39
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。
办公室装修强电没有通过现在要加大电量写字楼要收取电力增容费合理吗7000元一千伏安
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