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
- surface chemical reaction
- surface chemical shift
- surface chemisorption
- surface chemistry
- surface cleaning
- surface coating
- surface coating of magnesium alloys
- surface coating technology
- surface collapse
- surface color
- surface color calibration
- surface combatants
- surface complexation
- surface complexation model
- surface composition analysis
- surface concentration
- surface condenser
- surface conductance
- surface contamination monitor
- surface convex toward one side
- surface coordinate
- surface course
- surface cover classification
- surface crack
- surface critical field