描述定义语言 meaning in English
ddl description definition language
Examples
- Information technology - multimedia content description interface - part 2 : description definition language
信息技术.多媒体内容描述接口.第2部分:描述定义语言 - Design and implementation of the video content description tool : according to description definition language ( ddl ) , this paper gives a content description tool based on the mpeg - 7 standard
视频内容描述工具的设计和实现：根据描述定义语言，建立基于mpeg - 7标准的视频内容描述工具。