““421”structure family”的概念、定义、翻译、参考文献-科学参考

单词	“421”structure family
释义	“421”structure family Encyclopedia 法学家庭计划释 “421”structure family“四二一”结构家庭第一代是独生子女夫妇双方的父母（“四”），第二代是双方均为独生子女的夫妇（“二”），第三代为独生子女夫妇的子女（“一”）的家庭结构模式。
随便看	pollution by particulates pollution by pesticides pollution by pharmaceuticals and personal care products, PPCPs pollution by plasticizer pollution by polychlorinated biphenyls pollution by polycyclic aromatic hydrocarbons pollution by selenium pollution by sulfur pollution by sulfur oxides pollution by tin pollution by vanadium pollution by zinc pollution chemistry pollution control chemistry pollution control for agricultural land pollution control for the waste incineration power generation Pollution Control Process pollution control system of cargo terminal pollution control technology Pollution damage assessment pollution discharge outlets pollution discharge permit system pollution ecology pollution export pollution exposure dose

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