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Iknewaguywhoplayedhisradioonlyinthemorning. Whensomeoneaskedhimwhy , hereplied,ThisisanAMradio. Notes: 1.Iknewaguywhoplayedhisradioonlyinthemorning. 我认识一个人,他只在早上收听广播。 2.Whensomeoneaskedhimwhy , hereplied,Thisisan
On January 11, Norway became the first country to begin turning off signals from its FM radio network. The Norwegian stations will instead use only digital audio broadcasting, called DAB. FM, or frequency modulation, radio stations have been in opera
Delay - This is the wait time between to specific events, and regarding satellite communications, it is the time it takes for a signal to go from the transmission station up to orbit and through the s
Robot Can Help With Farm Work 可以帮助农民干活的机器人 In the American state of Idaho, a robot moves between lines of fruit trees and grapevines. It is doing farm work. Called IdaBot, this robot is a prototype, or model. An engineering te