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
- early radiobiological effects of nuclear explosion
- early reflection sound
- early repolarization syndrome
- Early retirement policy
- early seasonal rice
- early Socialist movement in Japan
- early spectral type
- Early Spring
- Early Spring in February
- early stage socialization
- early stage star
- early stellar evolution
- early stopping method
- early strength
- early sun
- early transition metal
- early transition state
- early translated mechanics literature
- early-type cluster
- early-type emission-line star
- early-type emission star
- early-type galaxy
- early-type spiral galaxy
- early-type star
- early-type supergiant