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
- Hydrochlorofluorocarbon refrigerants
- hydrocinnamic alcohol
- hydrocleaning
- hydroclone
- hydrocole animal
- hydroconsolidation
- hydrocooler
- hydrocortisone
- hydrocracked tail oil
- hydrocracking
- hydrocyanic acid
- hydrocyclone feeding density control
- hydrocyclone feeding pressure control
- hydrocyclones
- hydrocyclone technology for sewage treatment
- hydro-cylinder
- hydrodiascope
- hydrodrill
- hydroduct
- hydrodynamic
- hydrodynamical evolution
- hydrodynamically equivalent sphere
- hydrodynamical simulation
- hydrodynamic approximation
- hydrodynamic bearing