“上变频调制”的概念、定义、翻译、参考文献-科学参考

单词	上变频调制
释义	上变频调制 Encyclopedia 工学无线光通信释 up-conversion modulation上变频调制将具有一定频率的信号调制到具有更高频率的载波上并用于传输。
随便看	packaging regulation packaging-shaping defect packaging standardization packaging technique packaging technology of light emitting diode Packaging Textiles packaging waste directive pack cementation packed-bed bioreactor packed bed electrode packed bed reactor packed bed thermal energy storage packed capillary packed capillary electrochromatography packed column packed dryer packed flotation column packed hole assembly packer fluid packer unfreezing packet packet classification packet-filter firewall packet filtering packet internet groper

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。