How do you avoid over collection and damage to the local ecosystem?

你们如何避免过度采集以及对当地的生态体系的破坏?

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EEE system ( Efficiency, Economy, Ecology system )

效率 、 经济 、 生态体系 ( 染整工艺三要素 )

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This is necessary for the creation of a community with complex ecological relationships.

而这些食物又是创建复杂生态体系所必不可少的.

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Damming rivers for hydropower plants has devastated river systems, submerged farmland and displaced thousands of people.

拦河筑坝,建立水力发电厂,破坏了河川生态体系, 淹没农田,并使数千人被迫迁居他乡.

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