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
- zero algebra
- zero allowance assembly
- zero anaphora
- Zero and negative tour expense
- zero approximation
- zero arrow
- zeroaxial
- zero-base budgeting
- zero-based budgetbudget
- zero-beat method
- zero bias
- zero bias anomaly
- zero bias conductance
- zero bias resistance
- zero bilinear form
- zero carbon city
- zero-carbon housing
- zero category
- zero centre meter
- zero chain
- zero characteristic
- zero-circuit
- zero class
- zero-coefficient
- zero copy protocol