您要查找的是不是：
- 密度-类群DG指数densitygroup index
- 指数index
- 类群monoid
- 一群regiment
- 除子类群divisor class group
- 求导类群derivation class group
- 同余类群group of congruence classes
- 人口分布构成，某地区的人种、类群或种群的居住者的总数the total number of inhabitants constituting a particular race,class,or group in a specified area
- 外类群outgroup(动)
- 类群元group - like element
- 主类群main types and groups
- 相类群facies group
- 低剂量混合稀土积累对黄褐土微生物主要类群的生态效应Ecological effects of low dosage mixed rare earth elements accumulation on major soil microbial groups in a yellow cinnamon soil
- TCBS类群TCBS group
- 自由类群free monold
- 植物类群phytogroup
- 类群分布biodiversity
- 自然类群natural group
- 类群特征community character
- 代数类群algebra class group
