“GRS1980 ellipsoid”的概念、定义、翻译、参考文献-科学参考

单词	GRS1980 ellipsoid
释义	GRS1980 ellipsoid Encyclopedia 工学参考椭球释 GRS1980 ellipsoid1980大地测量参考椭球 1980年西安大地坐标系统采用的地球参考椭球。
随便看	nonnegative function nonnegative integer nonnegative integral kernel nonnegative manifold nonnegative matrix non-negative matrix factorization nonnegative measure nonnegative number nonnegative operator nonnegative orthant nonnegative partial sum nonnegative quadratic form nonnegative semi-definite matrix nonnegative solution nonnegative splitting nonnegativity nonnegativity condition nonnegativity requirement non nesting matching non-nesting matching nonnesting matching non nesting partition non-nesting partition nonnesting partition non neutral plasma

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