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
- BesselJZero
- BesselK
- Bessel kernel
- Bessel polynomial
- Bessel potential
- Bessel potential operator
- Bessel potential space
- Bessel process
- Bessel second integral
- Bessel statistical formula
- Bessel system of functions
- Bessel transform
- BesselY
- BesselYZero
- Bessemer process
- besshi-type deposit
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