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monitor2885: 金币+5, 翻译EPI+1, ★★★★★最佳答案 2014-03-12 20:45:21
according to "Surface Water Quality Standard" (GB3838-2002), surface water aquatic environment followed by functional level is divided into five categories: Ⅰ principal source of water applied to the National Nature Reserve; Ⅱ principal applies to centralized a surface water source for drinking water protection areas, rare aquatic habitats,hollister outlet, fish and shrimp production field, larvae of feeding grounds, etc.; Ⅲ principal applies to centralized drinking water to two surface water protection zone , fish and shrimp wintering grounds,ugg adirondack, aquaculture, fishing waters and swimming areas and other areas; Ⅳ principal applies to recreational water areas are generally non-industrial water zone and in direct contact with the human body; 水体的划分:一类指未受任何污染的源头水。二类指重要的集中式生活饮用水源一级保护区及珍贵的鱼类保护区、鱼虾产卵场。三类指集中式生活饮用水源二级保护区及一般鱼类保护区、游泳区。四类指一般工业用水区及人体非直接接触的娱乐用水区。

人体非直接接触的娱乐用水区 recreational water areas indirect contact with the human body
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