屋面、水沟施工标注1%是百分之一的坡度这里的坡度是什么意思?
屋面、水沟施工标注1%是百分之一的坡度这里的坡度是什么意思?
数学人气:371 ℃时间:2020-01-30 22:20:54
优质解答
AB两点高低之差/距离之差=1/100
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