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
- container transportation
- container unit
- container wharf
- containing
- containing power body energy
- containing power-body energy
- containment
- containment constraint
- containment drain tank
- containment shell
- containment theory
- Contamin
- contaminant
- contaminant diffusion simulation
- contaminant plume
- contaminant removing efficiency
- Contaminated Site
- contaminated site institutional control
- contaminated site management
- contaminated site remediation
- contaminated soil solidification and stabilization
- contamination
- contamination of animal derived food
- contamination prevention test technology of spacecraft space environment
- contamination test