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It starts with a blip, a beep, a noise, a pattern, a signal. It could be anything - ink on paper, machine data, or even the words flowing through your minds right now. Signal generators play an important role in testing devices we use every day. The
英语解说豆知识2011年
Although the cyclone was category 4 the second highest level gusts of wind were 270km an hour at times. Both the wind and the rain caused damage. Many houses in Fiji are not strong and can easily be destroyed in a storm. Some houses blew away in the
新西兰英语
DCE data circuit terminating equipment DCP digital communications protocol DCS digital cross-connect system DDD direct distance dialing DDN Defense Data Network Digit L Digital L is another amplitude
电信英语
D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in
电信英语
ARI SHAPIRO, HOST: 2018 will be the last year in the Senate for Orrin Hatch. The Utah Republican announced today that he is retiring and will not seek re-election this November. Hatch has shaped some of the most meaningful legislation of the past 40
2018年NPR美国国家公共电台1月
STEVE INSKEEP, HOST: The arrival of the new Congress means the retirement of Utah Senator Orrin Hatch. NOEL KING, HOST: Hatch was elected 42 years ago in 1976, when Gerald Ford was president. Presidents have come and gone since then - seven president
2018年NPR美国国家公共电台12月