雙向電路 bidirectional circuit; bilateral circuit; both way circuit; circuit worked on uand down bias; circuit worked on up and down basis; two way circuit; two-way channel; two-way circuit
These two-way tv systems raise serious questions about privacy . 這些雙向電視系統(tǒng)將引起保密方面的嚴重問題。
Users of such two-way tv systems may soon be able to talk to their sets and have them talk back . 這樣的雙向電視系統(tǒng)的用戶很快就可以同他們自己的電視機進行面對面的問答。
The teaching material combination that a variety of medium such as the literal teaching material , phonic resembling teaching material , classroom on the net and cd - rom education cd use in education and use a face to award , discuss on net of mailbox of telerecording , two - way tv , speech , email , bbs wait for a variety of seesaw pattern , utmost ground satisfies the study need of student of disparate arrangement of ideas 教學中采用文字教材、音像教材、網(wǎng)上課堂和cd - rom教學光盤等多種媒體的教材組合以及采用面授、電視錄像、雙向電視、語音信箱、電子郵件、 bbs網(wǎng)上討論等多種交互式的教學輔助手段,最大限度地滿足不同層次學生的學習需要。
In addition to the capability of simultaneous transmission of six and two channels of two - way tv signals by the existing international and national satellite earth stations , nine more channels have been added for international satellite transmission to provide more than 14 channels of simultaneous analog and digital two - way tv information delivery to 12 home and overseas satellites and send video signals all over the world 現(xiàn)有的國際、國內(nèi)衛(wèi)星地球站除可同時提供6路和2路雙向電視傳送能力外,還新增了9路國際衛(wèi)星電視的上星傳輸能力,可同時向國內(nèi)外1 2顆衛(wèi)星提供1 4路以上的模擬和數(shù)字雙向電視信息傳送,將圖像信號送至世界各地。
The teaching programs in the central node are transferred to the teaching terminals , while the request of terminals can be feed back to the central node . thus , the broadcasting of teaching programs can be controlled at both the terminals and the central node , and many functions such as teachings by tv or computer can be carried out . the central node of this distance teaching system is consisted of a smart server controller , which provides the transmission ports , and a program controller , which manages the switch of teaching programs 實現(xiàn)遠程教育的方法很多,本文主要目的是從學校遠程教學的角度出發(fā),并結(jié)合傳統(tǒng)學校教學的特點,構(gòu)建一種基于遠程教育的校園多媒體綜合教學網(wǎng)絡(luò)系統(tǒng),可以把位于學校主控中心教學節(jié)目源的教學內(nèi)容傳送到各種教學節(jié)點上,同時教學節(jié)點的教學情況也可以回傳到主控中心,雙方可以實現(xiàn)雙向控制教學節(jié)目的播放,實現(xiàn)具有遠程概念的雙向電視教學、計算機教學和教學觀摩等功能。