According to the theory of multimodal discourse analysis, the meaning potential of spatial composition is performed from three aspects: information value, salience and framing. Taking the page of LDOCE 5 DVD-ROM as an example, this paper analyzed the functions and significance of them during the course of dictionary communication, concluding that only the rational combination and integration of these three aspects can greatly help to achieve the purposes of multimodal dictionary compilation.%多模态话语分析理论认为,多模态画面或者界面空间布局的语义潜势主要通过三个方面的参数来实现:信息价值、凸显和构架。以《朗文当代英语词典(第五版)》光盘版界面为例,分析了以上三个方面在词典编纂过程中的功能和作用,指出只有三者相辅相成,有机结合在一起才能顺利实现多媒体词典的编纂目的。
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