“cross ratio”的概念、定义、翻译、参考文献-科学参考

单词	cross ratio
释义	cross ratio [`krȯs ´rā·shō] ^MATHEMATICS For four collinear points, A, B, C, and D, the ratio (AB )(CD )/(AD )(CB ), or one of the ratios obtained from this quantity by a permutation of A, B, C, and D.
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科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。