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1. The sediment and water test results showed that the river had been contaminated by industrial waste.
沉积物和水测试结果显示，这条河流受到了工业废水的污染。
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2. The water quality test conducted by the environmental agency revealed high levels of pollutants in the lake.
环境机构进行的水质测试显示，这个湖中污染物含量很高。
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3. The sediment and water test is crucial for understanding the ecological impact of human activities on the environment.
沉积物和水测试对于理解人类活动对环境生态影响至关重要。