“null geodesic”的概念、定义、翻译、参考文献-科学参考

单词	null geodesic
释义	null geodesic [`nǝl ´jē·ǝ`des·ik] ^MATHEMATICS In a Riemannian space, a minimal geodesic curve. ^RELATIVITY A curve in space-time which has the property that the infinitesimal interval between any two neighboring points on the curve equals zero; it represents a possible path of a light ray. Also known as zero geodesic.
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