软件工程 释文 dynamic systems development method, DSDM 动态系统开发方法
- Urysohn equation
- Urysohn function
- Urysohn lemma
- Urysohn metrization theorem
- Urysohn operator
- Urysohn separation axiom
- Urysohn space
- Urysohn theorem
- Urysohn-Tikhonov theorem
- Uryson
- USA
- usability
- Usability Engineering
- usability engineering
- usability expert
- Usability Heuristics
- usability laboratory
- usability research
- Usability Testing
- usable
- usable aperture
- usable area
- usable capacity
- usable direction
- usable energy