Industrial pollution in our town had supposedly turned students into living science experiments breathing in a laboratory's worth of heavy metals like manganese, chromium and nickel each day.
我们镇上的工业污染应该已经把学生们变成了活生生的科学实验品，他们每天都要吸入相当于实验室含量的锰、铬和镍等重金属。
Nickel is widely applied in electroplating and the synthetic diamond manufacturing, which causes a great deal of pollution.
金属镍在电镀以及人造金刚石生产中有着广泛的应用，但会产生大量的污染。
Metal passivator can inhibit nickel and vanadium pollution on the catalytic cracking catalysts and improve the property of polluted catalysts.
金属钝化剂可以抑制镍和钒等金属对催化裂化催化剂的污染，使被污染催化剂的性质得到改善。
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