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We've started analyzing television content using the same principles -- 我们开始分析电视内容，用同样的原则-- analyzing event structure of a TV signal -- 分析一个电视信号的事件结构-- episodes of shows, commercials, all of
TED演讲教育篇
WAN wide area network WARC World Administrative Radio Consortium WATS Wide-area telecommunications services. See Wide-area telecommunications services. Waveform amplitude (magnitude) versus time repre
电信英语
Direct Inward Dialing (DID) DID is PBX-to-central office trunks that allow incoming calls to a PBX to ring specific stations without attendant assistance. DID greatly reduces the number of required co
电信英语
Here is VideoJug's guide to looking more approachable. Judi James, our body language expert and author of 'Body talk At Home', shows you how to send out the right signals so you come across as approachable and as someone everyone wants to meet. 如何让
实用英语
But heres a mystery: When you press pause on the VCR, the screen doesnt go blank. Instead, you get a frozen image. Remember, you need a changing magnetic signal to create even a still video image. If the video tape isnt moving, where is this changing
英语时差8，16
Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the so-called playback head in the VCR or cassette deck (cassette decks have one playback head, VCRs have
英语时差8，16