enrichmentn.丰富;改进;浓缩
enrichment ratio富集比
enrichment device化油器省油装置
enrichment method浓缩富集
enrichment theory丰富说
enrichment medium富集培养基
enrichment mantle富集型地幔
enrichment factor浓缩因子,增补因素
enrichment region富集区,浓缩区
enrichment period强化时间
Enrichment plants富集植物