摘要
就字幕在教学电视中的应用，结合实例从字幕与图象、声音等其它电视要素之间的关系。
According to the relation between the caption and other factors of TV and on the basis of some examples, this paper has analysed and discussed the functions of the caption and its design rules.
关键词
字幕
教学电视
图象
声音
思维
电视教学
caption
ETV(education television)
image
sound
attention
thinking
