The "Elements" (of Euclides Geometry) spreads the knowledge of plane geometry in China.
《几何原本》（欧几里得几何）在中国传播了平面几何的知识。
Learning plane geometry well is the foundation of learning solid geometry well.
学好平面几何是学好立体几何的基础。
The theorems, formulas and principles in plane geometry reveal the intrinsic relations and basic laws of geometrical concepts.
平面几何的定理、公式、法则反映了几何概念的内在联系，揭示了它们之间的基本规律。
The"Elements"(of Euclides Geometry)which Ricci and Xu Guanqi, an outstanding Ming scientist and minister of rites, jointly translated, spread the knowledge of plane geometry in China.
他与明代杰出的科学家，后来官居礼部尚书的徐光启合译的《几何原本》，对西方平面几何知识在中国的传播起了巨大的作用。
Three of Archimedes' extant works are devoted to plane geometry.
阿基米德现存的三部著作都是献给平面几何的。
The circle-power theorem is one of important theorems in plane geometry.
圆幂定理是初中平面几何《圆》中重要定理之一。
This paper lists the transformation of thinking in junior school plane geometry application.
本文列举了转化思想在初中平面几何中的应用。
This article presents an automatic measuring system of plane geometry parameters based on machine vision.
本文构建一种能够自动测量物体平面几何参数的系统，介绍了系统的硬件和软件组成。
This paper mainly introduces the project planning and realization method of a kind of CAD application for designing embossment with plane geometry patterns.
本文介绍了一种平面图案浮雕CAD软件的方案设计和实现方法。
This mode of revolution can be used not only to solve the problems in plane geometry, but to deal easily with orientation and measurement of space geometry elements.
使其不仅可以解决有关同一平面的几何问题，也可方便地求解空间几何元素间的定位与度量问题。
With some examples in plane geometry, the author indroduces how to use Desargues theorem to simplify the proofs of problems of collinear points and concurrent lines.
利用代沙格定理及其逆定理 ，对平面几何的几个共线点和共点线的问题给出简捷的证法。
Through the method in which a plane in space can be determined by normal and normal plane, the complicated problems in space geometry can be imaged into the problems in plane geometry.
用法线和法线平面确定空间平面位置的方法，将复杂的空间几何问题简化为平面几何问题。
Through the method in which a plane in space can be determined by normal and normal plane, the complicated problems in space geometry can be imaged into the problems in plane geometry.
用法线和法线平面确定空间平面位置的方法，将复杂的空间几何问题简化为平面几何问题。
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