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土壤安全临界值
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土壤安全临界值
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土壤安全临界值
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safety threshold of soil pollutants
土壤安全临界值
土壤中污染物浓度对生态环境中的某一部分(植物、水体、大气、动物等)开始产生不可接受的危害时的水平。是建立土壤环境质量标准或土壤环境质量评价指南的重要依据,是衡量土壤环境质量对于特定目标是否安全的关键指标。又称土壤安全阈值、土壤保护值。
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thecium
the civil accepting and hearing
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The Clash of Civilizations and the Remaking of World Order
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the classification of thematic map elements
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The Class Struggles in France 1848 to 1850
the clause of the state respects and preserves human rights
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The Clifford Constitution(1916 ,1922)
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