英语词汇“director circle”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	director circle
释义	director circle director circle [di′rek·tər ′sər·kəl] (mathematics) A circle consisting of the points of intersection of pairs of perpendicular tangents to an ellipse or hyperbola.
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