发布时间:2025-01-31 13:13:52
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。
我们买了一套稍微偏远的套房要等到明年五月份才会交钥匙我想现在钱不多只有五万元简单装修先住
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