Descriptive geometry of the problem is to study geometry of space and graphic icon of the law school he was an engineering drawing of the theoretical basis.
画法几何学是研究空间几何问题图示法和图解法的一门学他是工程制图的理论基础。
Descriptive geometry of the problem is to study geometry of space and graphic icon of the law school he was an engineering drawing of the theoretical basis.
画法几何学是研究空间几何问题图示法和图解法的一门学他是工程制图的理论基础。
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