videotext 中文意思是什麼
videotext
解釋
閉路電視報文-
The bandwidth of the copper in addition hawser itself is limited, and placed restrictions on many media need to access the broad width network : like videophone, large data transmitting, videotext etc.
再加之銅纜本身的帶寬有限，限制了許多需要較大帶寬的業務的接入：如可視電話、大容量的數據業務、可視圖文等等。
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