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1·Pollution fines do only work if they are prohibitively high.

如果污染罚金足够高，那么罚款会起到作用。

2·There are fines for exceeding permitted levels of noise pollution.

噪音超标会处以罚款。《牛津词典》

3·The smelting reduction process saves energy and lessens pollution through using of ore fines without any pretreatment and agglomeration.

由于使用无需任何预处理和造块的矿粉，熔融还原法既可节能、又能减少污染。