发布时间:2025-01-31 09:27:56
这个按直角三角形算,根据勾股定理,作屋顶到面的垂直线,分成两个等腰直角形。规律是高为3,底为4,斜面为5,再按比例尺算。假设下面总长16米,那么一边直角形是8米,得出高为6米。
安装二级配电箱多少钱内配2个200a隔离开关及4个200a漏电开关
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