closed sphere 中文意思是什麼

closed sphere 解釋
閉球
  • closed : adj. 1. 關閉著的,封閉著的;密閉著的;保密的。2. 〈美國〉準備好了的;定了契約的。3. 【語音】閉音節的。
  • sphere : n 1 球;球體,圓體,球面,球形。2 天體;星,行星。3 地球儀,天體儀。4 【天文學】天球;天空。5 (...
  1. The closed universe is similar to the surface of a sphere, the size is finite but there is no boundary

    封閉宇宙就好像球體的表面,大小有限但無邊。
  2. In the third second, we study a closed oriented submanifold with parallel mean curvature vector field in a sphere. let s = s - nh2. we fist obtain a pinching theorem on 5

    第三節中研究了歐氏球面中具有常平均曲率向量子流形,獲得兩個結果,其中一個結果推廣了h
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