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联合国人类环境会议
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联合国人类环境会议
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United Nations Conference on the Human Environment
联合国人类环境会议
世界各国政府共同探讨当代世界环境问题的第一次全球性国际会议。
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river channel bed form
river channel self-adjustment
river channel strengthening engineering
river chart
river closure
river connectivity restoration
river corridor
river crossing and bridge equipment
river deity temple
river density
river disconnection
river-dominated delta
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river ecosystem
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river environmental planning
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