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
- water potential
- water potential in soil
- water-powered roller
- water power plant control system
- water pressure
- water pressure blasting
- water pressure test
- water pressure testing
- water price
- water price classification
- water price components
- water price for administrative institutions
- water price for business and service
- water price for end canal system
- water price for key project
- water price of special industry
- water price of urban and rural water supply
- water pricing mode
- water product function of grassland
- water project deformation monitoring
- water project environmental impact assessment
- water project of Baojiatun village
- water project operation for emergency water pollution accident
- water project safety monitoring
- water project seepage monitoring