【简答题】
在标高投影中,两坡面坡度的箭头方向一致且互相平行,但坡度值不同,两坡面的交线是什么?In the elevation projection, two slopes have the same direction and parallel with each other, but they have different inclination degree, what is the intersection line of two slopes?
参考答案:
参考解析:
举一反三
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