“contrafocal”的英文意思_释义_用法

单词

contrafocal

释义

contrafocal, a. Math.|kɒntrəˈfəʊkəl|
[contra- 2.]
Having, as two conics or conicoids, the sums of the squares of two corresponding axes equal: opposed to confocal conics, etc. in which the differences are equal.
1866Sylvester in Phil. Trans. 760 Contrafocal ellipsoids, the sums of whose squared axes are the same in all three directions.1868E. J. Routh Rigid Dynamics 358 The momental ellipsoids of these bodies are contrafocal, i.e. have the sum of the squares of any two principal diameters the same in each ellipsoid.
Hence contrafocalism, the property of being contrafocal.
1866Sylvester in Phil. Trans. 771.

英语词典包含277258条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

相关内容：

“contrafocal”的英文意思

“步进继电器”英文翻译

“contraflow”的英文意思

“continuation”的英文意思

“歪斜故障”英文翻译

“contrafront”的英文意思

相关推荐