1. Given the algorithm for solving common tangent ball mechanism and network search algorithms. 给出了求解公切线的算法和网络搜索球机制的算法。
2. This paper proposes an arc-tangent function with modifying factor to model the SRM based on the characteristic of flux linkage. 根据SRM磁链曲线的特点，提出了一种带修正因子的反正切函数来建立SRM模型的方法。
3. To construct three circles in a triangle, the request is that each circle is tangent to other two circles as well as two sides of the triangle. 在一个三角形内作三个圆，要求使每个圆与其他两个圆以及三角形的两边相切，本文给出了解法及证明。
英英解释
n.
1. a straight line or plane that touches a curve or curved surface at a point but does not intersect it
2. ratio of the opposite to the adjacent side of a right-angled triangle
