英语词汇cross-cap怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	cross-cap
释义	cross-cap 简明释义 n.交叉帽：一种拓扑学中的非定向表面，具有一个自交叉点和一个非定向边。它是一个光滑的实射影平面，可以用于描述某些复杂数学结构。英英释义 abstract: 1 In mathematics, a cross-cap is a two-dimensional surface in 3-space that is one-sided and the continuous image of a M?bius strip that intersects itself in an interval. In the domain, the inverse image of this interval is a longer interval that the mapping into 3-space "folds in half". 权威例句 1. Quickly put together a fresh plan that includes the much-vaunted 80% of reforms that both sides say they agree on (pre-existing conditions, portability, lifetime caps, cross-state purchasing, etc.) and that throws in a few bones for Republicans (like the medical malpractice fixes proposed). FORBES
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英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。