【null_surface】什么意思_英语null_surface的翻译_音标_读音_用法_例句_在线翻译

null surface

零电荷面

脉冲星磁球中一些重要的区域：☆ 零电荷面 （ Null surface ）: e 0 即 B r 0 当 // 时，该表面位于＝55o.☆光柱面light cylinder：当共转速度为光速时，共转条件破坏。

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abstract: In the theory of relativity, a null surface is a 3-surface whose normal vector is everywhere null (zero length with respect to the local Lorentz metric), but the vector is not identically zero. For example, light cones are null surfaces.

以上来源于: WordNet

This paper is devoted to show the null exact controllability for a class of nonlocal parabolic equations with equiv-valued surface boundary condition.

本文讨论了具有等值面边界条件的抛物型方程的非局部的精确零能控性问题。

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