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今天是：

3-manifolds是什么意思

中文翻譯3-流形

網(wǎng)絡(luò)釋義

1)3-manifolds,3-流形2)an amalgamation of two 3-manifolds,3-流形的融合3)NO_3~-,NO~3~-4)NO~-_3,NO~-_35)As~(3+),As~（3+）6)3×3×3 lemma,3×3×3引理

用法例句

    The additivity of the relative genus of 3-manifolds;

    3-流形相對(duì)虧格的可加性(英文)

    This article extends snake lemma to two snakes lermma,and entends 3×3 lemma to 3×n lemma 3×3×3 lemma,Moreover,it studies some problems on exact plane,exact cube as well as problems on cubic commtative diagrams.

    將蛇引理推廣到雙蛇引理,將3×3引理推廣到3×n引理、3×3×3引理,并研究了與正合平面、正合立體有關(guān)的幾個(gè)問(wèn)題及立體交換圖問(wèn)題。