“focal chord”的概念、定义、翻译、参考文献-科学参考

单词	focal chord
释义	focal chord [`fō·kǝl ¦kȯrd] ^MATHEMATICS For a conic, a chord that passes through a focus of the conic.
随便看	time constant time-controlled system time correlation time-current characteristics time curve time delay time-delay circuit time-delay fuse time-delay relay time-derived channel time diagram time dilation effect time-distance graph time-division data links time-division multiplexing time-division multiplier time-division sound time-division switching system time-domain reflectometer timed signal service time factor time fire time formula time front time fuse

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