第四，美化矿区环境，有效控制污染。
Fourth, the mining area environment beautification, controlling effectively the pollution.
目的探讨矿区环境重金属污染及其机体健康效应。
Objective To explore heavy metal pollution in mining and its effect on health.
煤矿环境地质灾害是煤矿区环境问题的主要发生源。
Coal mine environment geological calamity are originates of coal mine environment problems.
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