Preservedegg wastewater which contains high concentration of heavy metal, salt and organic pollutants is very complicated.
皮蛋废水水质相当复杂，既属于含重金属离子废水，又属于中等浓度含盐有机废水。
2
"Has come an accent preservedegg, but also a your five tiger Chinese", after the mountain sea has a good swim, the respect guardian, you will discover, "my child has changed"!