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来源:雅诚德英语网
Dissolved oxygen in water reflects degree of water polluted, it is one of the important indexes in water monitoring.
水中的溶解氧可反映水体受污染的程度,是水质监测的一项重要指标。
Dissolved oxygen in water reflects degree of water polluted, it is one of the important indexes in water monitoring.
水中的溶解氧可反映水体受污染的程度,是水质监测的一项重要指标。