“bifocal chord of a quadric”的概念、定义、翻译、参考文献-科学参考

单词	bifocal chord of a quadric
释义	bifocal chord of a quadric 二次曲面的两焦点弦
随便看	movingcoil pickup moving coil receiver moving coil regulator moving-coil regulator moving coil relay moving-coil relay moving-coil seismograph moving coil speaker moving-coil transformer moving-coil type moving coil type ammeter moving coil type galvanometer moving-coil type instrument moving coil type loudspeaker moving coil type microphone moving-coil type oscillograph moving coil type over-current relay moving coil type torque motor moving coil type voltmeter moving coil voltmeter moving coil wattmeter moving-conductor electromagnetic seismograph moving-conductor loudspeaker moving-conductor microphone moving conductor microphone

科学参考收录了1248194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。