They began dosing the river with dissolved aluminium chloride in an attempt to neutralise the contaminants .
当局开始向河中投放石灰和聚合氯化铝,试图以此中和河水中的污染物。
The more dangerous water leaking from the plant is far higher than the safe limits for these contaminants .
在电站泄漏的更危险的水中,这些污染物的浓度远远超出安全限值。
The first level is designed to block large contaminants such as debris , fish and sediments .
第一层被设计用于滤除较大的污染物,诸如垃圾残骸,鱼以及沉淀物。
Too gentle a rubdown leaves contaminants on the surface . Too vigorous a scrubbing erodes the metal itself .
擦拭太过温柔,其表面会留有污染物;用力过猛,又会擦掉金属本身的表面成分。
The cause of the change is unknown , and some researchers have blamed environmental contaminants that might interfere with hormone balance or poison male embryos .
Many other contaminants have a similar effect such as solvents , numerous chemical contaminants and even oil oxidation by-products .
还有其他许多污染物比如说是溶剂,化学污染物,甚至是油氧化副产品,也有与水一样的污染效果。
Similarly , researchers at carnegie mellon put sensors in a local water-distribution system to detect and predict the spread of contaminants .
与此类似,卡耐基.梅隆大学的研究人员将传感器放进供水管道系统中,来探测和预测污染物的扩散。
Although the agency does not record its spending by individual contaminants , it is safe to say it has spent millions of dollars on lead cleanup .
尽管环保署并没有记录它在单一污染物治理上的支出,但仅铅一项的开支就足有数百万美元之多。
Scientists say the brominated flame retardants are among the most worrisome contaminants because they accumulate in animal and human tissues including breast milk - and they persist in the environment .