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
- line segment picking
- line segment range
- line separator
- line series
- line shape
- line shape function
- line shift
- line-shifter
- lines of code
- lines of electric displacement
- line source
- line space
- line spectral estimation
- line spectrum
- line spectrum pair
- line splitting
- line spread function
- line storage tube
- line strength
- line structure
- line style
- line (surface) of degeneration of type
- line symbol
- line symbol design
- line symbol method