It gives a relationship between a surface integral over an oriented surface and a line integral along a simple closed curve.
它建立了有向曲面上的曲面积分与它的边界曲线积分的关系。
A new and simple proving method on the famous theorem of total torsion, "the total torsion of closed spherical curve is zero", and two generalized theorems for the. theorem are presented in the paper.
本文给出了关于全挠率的一个著名定理：“球面闭曲线的全挠率为零”一个新的简单证法，并且给出了这个定理的两个推广定理。
A closed curve is a path that repeats itself, and thus encloses one or more regions. Simple examples include circles, ellipses, and polygons.
封闭曲线的路径是循环的，包围一个或更多区域，简单的例子如圆、椭圆、多边形。
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