文学 语义学 释 meta-language 元语言 用来描述或指称语言的语言或符号。又称纯理语言、符号语言。与对象语言（object language）相对。
metalanguage 元语言
＞数理逻辑与数学基础＞证明论＞释义 metalanguage 元语言 metalanguage 元语言†
系统软件 语言与编译 释文 meta language 元语言
- constant sheaf
- constant species
- constant specific mass flow pattern
- constant speed constant frequency
- constant speed drive unit
- constant-speed mercury intrusion
- constant speed motor/generator
- constant stratum
- constant stress test
- constant sum game
- constant-sum game
- constant surface
- constant symbol
- constant temperature and constant pressure MD
- constant temperature and humidity air conditioner
- constant temperature and humidity air-conditioning system
- constant temperature atomization
- constant-temperature incubator
- constant-temperature interface
- constant temperature MD
- constant term
- constant-term conjecture
- constant transformation
- Constant Troyon
- constant unfolding