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
- rock loosing zone
- rock magnetic susceptibility meter
- rock magnetism
- rock mass
- rock mass classification
- rockmass classification of dam foundation
- rock mass damage
- rock mass deformation
- rock mass deformation experiment
- rock mass deformation in dam foundation
- rock mass deformation stability in dam foundation
- rock mass evaluation
- rock mass failure
- rock mass measurement technique
- Rock mass parameters inversion analysis theory
- rock mass quality
- rock mass quality classification for dam foundation
- rock mass rating
- rock mass reinforcement
- rock mass seepage mechanics
- rock mass sliding stability in dam foundation
- rock mass stability
- rock mass strength
- rock mass strength experiment
- rock mass structure cybernetics