“Purbeckian”的概念、定义、翻译、参考文献-科学参考

单词	Purbeckian
释义	Purbeckian [pǝr`bek·ē·ǝn] ^GEOLOGY A stage of geologic time in Great Britain: uppermost Jurassic (above Bononian, below Cretaceous).
随便看	frequency modulation-phase modulation frequency-modulation receiver frequency-modulation receiver deviation sensitivity frequency-modulation transmitter frequency-modulation tuner frequency modulator frequency monitor frequency multiplexing frequency multiplier frequency offset frequency-offset transponder frequency optimum traffic frequency polygon frequency prediction chart frequency probabilities frequency pulling frequency recorder frequency regulator frequency relay frequency response frequency-response curve frequency-response equalization frequency-response trajectory frequency run frequency scan antenna

科学参考收录了103327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。