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
- sub-diffusion coefficient
- sub diffusion process
- sub-diffusion process
- sub-diffusive process
- subdirect
- subdirect decomposition
- subdirect irreducibility
- subdirectly irreducible
- subdirectly irreducible algebra
- subdirectly irreducible group
- subdirectly irreducible ring
- subdirectly reducible algebra
- subdirect product
- subdirect representation
- subdirect sum
- subdirect union
- subdistribution
- sub-district and neighborhood committee system
- subdistrict office
- subdivide
- subdivision
- subdivisional works
- subdivision by analogy
- subdivision chain
- subdivision chain mapping