理学 系统分析模型 释 object-oriented analysis; OOA 面向对象分析 采用面向对象方法的基本思想进行系统研究的方法，即按照面向对象的思想来研究业务，包括建立系统的需求模型（用况图），确定业务问题中的对象及其对象层次（类图），运用面向对象概念进行类图各个层次的建模等，还包含具体的过程指导。
OOA=optimum orbital altitude 轨道最适高度
软件工程 释文 object-oriented analysis, OOA 面向对象分析
- gas dehydration process with cryogen refrigeration
- gas dehydration process with ethylene glycol
- gas dehydration process with liquid absorption
- gas dehydration process with low-temperature separation
- gas dehydration process with molecular sieve
- gas dehydration process with propane refrigeration
- gas dehydration process with silicagel
- gas dehydration process with throttle refrigeration
- gas dehydration process with triethylene glycol
- gas density
- gas desulfuration with ferric oxide adsorption process
- gas desulfuration with hydramine process
- gas desulfuration with liquid absorption process
- gas desulfuration with molecular sieve adsorption process
- gas desulfuration with solid adsorption process
- gas desulfuration with sulfinol process
- gas detection tube
- gas diffuse layer
- gas diffusion electrode
- gas diffusion layer
- gas discharge
- gas discharge lamp
- gas discharge plasma
- gas distribution
- gas distribution console