Based on the groundwater monitoring data in townships of Dexin, Yuanjia and Huangxu, Deyang City, this paper demonstrates the study on the problem of groundwater pollution by manganese and puts forward the relavant control measures.是什么意思_Based on the groundwater monitoring data in townships of Dexin, Yuanjia and Huangxu, Deyang City, this paper demonstrates the study on the problem of groundwater pollution by manganese and puts forward the relavant control measures.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句