搜索 - 科创

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我查文献，发现貌似可以用KF和C（NO2）4在DMF中反应来制备氟硝仿。由于这个是合成FEFO的关键中间体，我就想问一下各位高手，如果要自己做的话应该注意些什么呢？谢谢了！

开关电源功率受到开关管的功率限制，当需要的设计功率远远大于现有单个器件功率时，目前有什么解决方案？例如高压直流输电，兆瓦级的开关电源。目前开关电源有没有模块化组合以达到功率要求的成功方案？模块化可热插...

1 使用CTCSS技术的中继器,是否只能有一个tone,还是一个中继器可以有多个tone.2 一个中继器,它的收发频率只能有一对吧,不是有多对吧?3 中继器之间的信号,是通过什么方式传输的?有线还是无...

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