Quoting a chemical reaction mode, we established a ZZZ(three Zhang)model. It can describe the "Population-Resource - Environmentn"system.
借用化学发应图式，建立描述“人口—资源—环境”系统的“ZZZ”模型。
Quoting a chemical reaction mode, we established a ZZZ(three Zhang)model. It can describe the "Population-Resource - Environmentn"system.
借用化学发应图式，建立描述“人口—资源—环境”系统的“ZZZ”模型。
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