At present, the majority of urban groundwater by a certain degree of spot-and surface-like pollution, and the trend year-on-year increase.
目前全国多数城市地下水受到一定程度的点状和面状污染,且有逐年加重的趋势。
At present, the majority of urban groundwater by a certain degree of spot-and surface-like pollution, and the trend year-on-year increase.
目前全国多数城市地下水受到一定程度的点状和面状污染,且有逐年加重的趋势。
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