理学 元模型体系结构 释 object constraint language; OCL 对象约束语言 一种形式化的模型描述语言。用于描述统一建模语言（UML）模型的细节，既是UML规范的组成部分，也可视为一种独立的语言。
软件工程 释文 object constraint language, OCL 对象约束语言
- powder metallurgy iron-based products
- powder metallurgy magnetic materials
- powder metallurgy material
- powder metallurgy materials with surper-fine crystalline structure
- powder metallurgy mechanical parts
- powder metallurgy of metal matrix composites
- powder metallurgy porous materials
- powder metallurgy refractory metal materials
- powder-metallurgy sand screen
- powder metallurgy science
- powder metallurgy superalloy
- powder metallurgy superalloys
- powder metallurgy sweating materials
- powder metallurgy titanium alloys
- powder metallurgy titanium aluminide
- powder method
- powder mildew of rubber tree
- powder mold compaction
- powder packing textiles
- powder pattern
- powder preparation by mechanical alloying
- powder preparation by precursors method
- powder preparation by self–propagation high–temperature synthesis method
- powder preparation of crude drugs
- powder prepared prepreg