A dynamic model on the co-evolution of environmental and economic system is developed to analyze the mechanism of economic recession due to environmental pollution.
建立了环境经济耦合系统的动力学模型，分析了环境污染引发经济衰退的机制。
A dynamic model on the co-evolution of environmental and economic system is developed to analyze the mechanism of economic recession due to environmental pollution.
建立了环境经济耦合系统的动力学模型，分析了环境污染引发(经济)衰退的机制。
The treatment adopts aerobe anaerobe actived sludge system, which has high effect, low consume of energy, good environmental benefit, society benefit and economic benefit.
该方案采用了新的好氧生物—厌氧生物—改进后活性污泥处理方法，具有效率高；能耗低；良好的环境效益、社会效益和经济效。
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