The multi-beam receiver is also uniquely suited for resolving one of the nagging problems of modern radio-telescopy: screening out radio frequency interference (RFI).
多波束器也是唯一决现代射电望远镜一个通病:滤掉电波干扰。
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Mr. Scheffer says his company produces a layer of graphene that is 80 percent pure. Graphene can be mixed into ink for printers. Stretchable parts can be printed for products such as antennas for radio frequency identification circuits.
Scheffer 先生说他的公司生产了一层纯度为 80% 的石墨烯。石墨烯可以混入打印的墨水中。可以为射频识别电路的天线等产品打印可拉伸部件。
Allesandro then asks, " Do you want to borrow my radio? " A " radio" (radio), for those too young to remember, is a device that receives what are called " radio frequency waves" and uses them to produce sound.
亚历山德罗接着问道, “你想借我的收音吗? ” “收音” (radio),对于那些太小不记得的人来说,是一种接收所谓的“射频波” 并利用它们产生声音的设备。