“北元”的概念、定义、翻译、参考文献-科学参考

单词	北元
释义	北元 Encyclopedia 历史学[政治]释 Northern Yuan Regime北元中国史书对元朝灭亡后退据蒙古故地的残余政权的称呼。延续年代始于明洪武元年（1368），终于建文四年（1402）。后为鞑靼所代替。
随便看	optical alignment optical alignment technology [optical] all-pass filter optical all-pass filter optical amplification optical amplifier optical analogue computer optical and electromagnetic transmission characteristic optical and near-infrared solar eruption tracer optical antimer optical antipode optical aperture synthesis imaging optical aperture-synthesis imaging optical aperture-synthesis imaging technique optical appearance opticalaptasensor optical arm optical art optical aspheric optical astrometry optical astronomical satellite optical astronomy optical astrophysics optical atomic magnetometer optical attachments

科学参考收录了854744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。