[电] 回波振幅

电信专业英英词典D-5

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

发表于:2019-01-03 / 阅读(69) / 评论(0)

电信英语

SSS 2010-11-02

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Toss a piece of leaf onto a spider web. The spider is indifferent. Because leaves don't squirm like captured flies. But Australia's assassin bug turns the tabl

发表于:2019-01-08 / 阅读(108) / 评论(0)

Scientific American(十一)月

NPR 2010-11-13

President Obama's spending the last two days of his Asia tour in Japan, shoring up trade support at a regional summit after suffering a few setbacks. Earlier at the G20 meeting in Seoul, the president was unable to secure a free trade pact with South

发表于:2019-01-08 / 阅读(63) / 评论(0)

2010年NPR美国国家公共电台11月

THIS IS AMERICA - Glen Echo Park

THIS IS AMERICA - Glen Echo Park By Jerilyn Watson Broadcast: Monday, June 14, 2004 (MUSIC) VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Faith Lapi

发表于:2019-01-30 / 阅读(141) / 评论(0)

This is America

人生的回音The Echo

A son and his father were walking on the mountains. Suddenly, the son falls, hurts himself and screams, AAAhhhh!!!To his surprise, he hears the voice repeating, somewhere in the mountain, AAAhhhh!!! Curious, he yells, Who are you? He receives the ans

发表于:2019-02-03 / 阅读(63) / 评论(0)

英语美文

音乐咖啡厅:Christina Grimmie - Echo

Boy I don't understand your drama Thought we were having fun should I not have called you Should I be sorry for being me I'm just trying piece together your mind You and me were cool when I saw you last night Now we're in this state of emergency Oh y

发表于:2019-02-25 / 阅读(115) / 评论(0)

音乐咖啡厅

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butylated hydroxytoluene

cinnamomum wilsonii gamble

clavinovas