【几何】 (多指六面以上的)多面体。
"late 16th cent.: from Greek
单词 | polyhedron |
分类 | 英汉词典 |
释义 |
词典释义:
polyhedron
英 [ˌpɒlɪˈhiːdrən]
美 [ˌpɑliˈhidrən]
n. 多面体
网络释义多面体;多角体;裂解病毒系统中多角体;正多面体;
双语例句
近义词
n.
Hedra
同根词
词根 polyhedral
百科
1. A polyhedron (plural polyhedra or polyhedrons) is often defined as a geometric solid with flat faces and straight edges (the word polyhedron comes from the Classical Greek πολύεδρον, from poly-, stem of πολύς, \many,\ + -edron, form of εδρον, \base\, \seat\, or \face\).\nThis definition of a polyhedron is not very precise, and to a modern mathematician is quite unsatisfactory. Grünbaum (1994, p.43) observed, \The Original Sin in the theory of polyhedra goes back to Euclid, and through Kepler, Poinsot, Cauchy and many others ... [in that] at each stage ... the writers failed to define what are the 'polyhedra' ....\ Mathematicians still do not agree as to exactly what makes something a polyhedron.\nAny polyhedron can be built up from different kinds of element or entity, each associated with a different number of dimensions:
释义
n.
【几何】 (多指六面以上的)多面体。
词源
"late 16th cent.: from Greek |
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