television signals are first changed into radio waves,which are then sent from a station on earth to an orbiting satellite.which are then怎么理解?

television signals are first changed into radio waves,which are then sent from a station on earth to an orbiting satellite.which are then怎么理解? 英语短句填空,帮个忙翻译下谢谢大家了!二1、no one took cable television seriously forty years ago then it ___more than a way for isolated towns to receive television signals.a.is not b. was not c. is no d. was no2、she is the most receiving our radio and television在这句话里做什么成分?Such a messenger,receiving our radio and television signals,might well re-transmit them back to its home-planet,although what 【impression any other civilization would thus get from us television Television a commercial aired on television 为何不说watch a television或者watch televisions 而说 watch television就是television 英语填空 On Saturday evening I often(). A watch a television B watch television C see a television Several years ago,a television reporter 英语翻译A radio determination system based on the comparison of reference signals with radio signals reflected ,or retransmitted from the position to be determined ,is radar system. if there's an a__like a fire or an earthquake ,the system sends out helpsignals In U.S.Signals to Egypt,Obama Straddled a Rift求标题翻译, in America a complex set of cultural signals这里的set of a film show 意思 a radio/television show 意思 smoke signals是什么意思 smoke signals是什么意思 smoke signals是什么意思 smoke signals是什么意思