polluted造句
181. But this water seems dead: it's polluted and horribly stagnant.
182. So we should try to improve the usage rate of water by saving water, control the overdevelop of underground water, make full use of ground water, fa-ther and reuse waste and polluted water.
183. Among various vegetables detected, only greengrocery is polluted by heavy metal and the comprehensive pollutant index is 1.12. It means lightly polluted.
184. These trace gases are not detectable by smell in any but the most heavily polluted atmosphere.
185. We establish a linear birth and death process model of a population in polluted environment.
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