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重金属污染物
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重金属污染物
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地下水污染
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heavy metals
重金属污染物
由人为因素进入地下水并影响地下水的理化性质和组成,导致地下水质量恶化、地下水环境系统自然功能失调的,相对密度大于5000千克/立方米的物质。
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synthetic cell polarity
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synthetic fiber filter membrane
Synthetic Fiber in China
synthetic fiber wastewater
synthetic fibre
synthetic focal array
synthetic fragrance
synthetic fuels
synthetic gas
synthetic gas; syngas
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