“confocal quadrics”的概念、定义、翻译、参考文献-科学参考

单词	confocal quadrics
释义	confocal quadrics [kän`fō·kǝl `kwäd·riks] ^MATHEMATICS Quadrics that have the same principal planes and whose sections by any one of these planes are confocal conics.
随便看	twin entry twiner twin-geared press twinkling stars twin law twinned double bonds twinning twinning plane twin paradox twin plane twin ring structures Twins twin-T filter twin-T network twist twist boundary twist drill twisted curve twisted pair twister twisting twist-lock connector twist of rifling twistor twist-yarn cloth

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