微积分基本定理，不是曲线积分的，告诉我们，如果对函数的导数积分，就会得回原函数。

So, the fundamental theorem of calculus, not for line integrals, tells you if you integrate a derivative, then you get back the function.

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这些都是反映了,线积分的微积分基本定理的特例。

So, these are special cases of what's called the fundamental theorem of calculus for line integrals.

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讨论局部对称空间中具有平行平均曲率向量的子流形，得到其关于第二基本形式模长平方的积分不等式的相关定理。

This paper discusses submanifolds with parallel mean curvature vector in local symmetric Spaces and obtains integral invariants about the square of modulus-length.

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