理学 基于UML的设计 释 activity diagram 活动图 统一建模语言（unified modeling language; UML）的一种行为图，由各种动作结点、控制结点和它们之间的控制流、对象流等元素构成。
软件工程 释文 activity diagram 活动图
- video copy detection
- video crystal
- video data modeling
- videodensitometer
- video disk
- video disk system
- video distributor
- video effect
- video encoding and decoding device
- video-extensometer
- video file
- video flatness analysis device
- video frame
- video frequency
- video glasses
- videogrammetry
- video graphic array
- video graphic array, VGA
- Videography
- video Hash
- video identification
- video index
- video information
- video information mining and judgment
- video information processing