tetrad 四元组，四分体
four combination 四元组 quad 四角形区域，四元组 quadruple 四元组；四重的，四倍的 quadruplet 四元组 quaternary 四进制的，四元的；四元组 tetrad 四元组 vierbein 四元组
系统软件 语言与编译 释文 quadruple 四元组
- modal truth functor
- modal unbiased estimation
- modal unbiased estimator
- modal value
- modal voice
- Mo Dan
- Modbus protocal
- Modbus协议
- mode
- mode analysis
- mode change
- mode competition
- mode configuration
- mode conversion
- mode converter
- mode coupling
- mode-coupling theory
- mode decomposition response spectrum method
- mode degeneracy
- mode delay
- mode density
- mode-division de-multiplexer
- mode-division multiplexer
- mode expansion
- mode field diameter