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monitor2885至尊木蟲 (職業(yè)作家)
隊(duì)長
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[求助]
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| 人體非直接接觸的娛樂用水區(qū) |

新蟲 (初入文壇)
版主 (文壇精英)
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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; 水體的劃分:一類指未受任何污染的源頭水。二類指重要的集中式生活飲用水源一級(jí)保護(hù)區(qū)及珍貴的魚類保護(hù)區(qū)、魚蝦產(chǎn)卵場。三類指集中式生活飲用水源二級(jí)保護(hù)區(qū)及一般魚類保護(hù)區(qū)、游泳區(qū)。四類指一般工業(yè)用水區(qū)及人體非直接接觸的娛樂用水區(qū)。 人體非直接接觸的娛樂用水區(qū) recreational water areas indirect contact with the human body |

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