At seven we had ascended the two thousand steps of this grand staircase, and we had attained a bulge in the mountain, a kind of bed on which rested the cone proper of the crater.
七点钟,我们登上了这座大楼梯的两千级台阶,到达了山上的一个凸起,就像一张床, 上面搁着火山口的圆锥体。
单词 | Proper cone |
释义 |
Proper cone
原声例句
地心游记-The journey to the heart of the Earth At seven we had ascended the two thousand steps of this grand staircase, and we had attained a bulge in the mountain, a kind of bed on which rested the cone proper of the crater. 七点钟,我们登上了这座大楼梯的两千级台阶,到达了山上的一个凸起,就像一张床, 上面搁着火山口的圆锥体。
英语百科
Convex cone(重定向自Proper cone)
![]() In linear algebra, a convex cone is a subset of a vector space over an ordered field that is closed under linear combinations with positive coefficients. |
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