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积水沼泽
积水沼泽是水供给全部来自天然降水的一种湿地生态系统,一般呈酸性并含有较贫瘠的营养元素。通常积水沼泽具有三个基本特征:地表经常过湿或有薄层积水;其上生长湿生植物或沼生植物;有泥炭积累或无泥炭积累,但有潜育层存在,沼泽排水差,潜水面位于地表。
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The National Emergency Preplans for Forest Fires
The National Film and Sound Archive of Australia
The National Film and Television School(NFTS)
The National Film School of Denmark
The National Fishery Eco-environment Monitoring Network
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The National Gallery of Jamaica
The National Herald
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The National History Museum of the Kyrgyzstan Republic
the National Institute for Occupational Safety and Health
The National Instructing Committee of Vocational Education of Cultural Heritage Conservation
The National Library of Medicine ,NLM
the National Major Industry POPs Pollution Prevention and Control "12th five-year" Program
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The National Museum of Archeology, Anthropology and History of Peru
The National Museum of Australia
The National Museum of Emerging Science and Innovation
The National Museum of History of Azerbaijan
The National Museum of Mongolia
The National Museum of Pakistan
The National Museum of Yemen
The National News Broadcast
The National Office of Animal Health
The National Political Security Bureau
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更新时间:2025/12/15 19:53:27