根据污染物质的输入和输出动态平衡关系建立了土壤重金属污染预测模式。

Based on the dynamic equilibrium of input and output pollutants, a predicting mode for heavy metals in soil has been set up.

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往海洋里排放污染物质给大海里的生命带来伤害，废气改变了空气中化学物质的平衡并且阻挡了一些太阳的益处——光明。

The throwing of waste products into the ocean hurts the life in the sea, while waste gases change the chemical balance of the air and shut out some of the sun's necessary life – giving lights.

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