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聚酰胺纤维材料
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聚酰胺纤维材料
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聚酰胺纤维材料
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polyamid fiber materials
聚酰胺纤维材料
大分子主链重复单元中含有酰胺基团的高聚物纺制而成的纤维。俗称尼龙纤维材料。是世界上第一种合成纤维。
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National Nature Reserve for Coral Reef in Xunwen, Guangdong
National Nature Reserve for Dugong in Hepu,Guangxi
National Nature Reserve for Marine Ecology in DazhouIsland,Wanning, Hainan
National Nature Reserve for Marine Ecology in Jiushan Archipelago,Zhejiang
National Nature Reserve for Rare Marine Organisms in Leizhou, Guangdong
National Nature Reserve for Rare Marine Species in Xiamen
National Nature Reserve for Shell Bay and Wetland in Binzhou , Shandong
National Nature Reserve for Snake Island-Laotie Mountain in Liaoning
National Nature Reserve for Submerged Forest Remains in Shenhu Bay, Fujian
National Nature Reserve for Wetland in Jiuduansha,Shanghai
National Nature Reserve for Whooper Swan in Rongcheng, Shandong
National Nature Reserve in Beilun Esturay, Guangxi
National Nature Reserve in Changdao Island,Shandong
National Nature Reserve in Nanji Islands, Zhejiang
National Nature Reserve in Neilingding Island-Futian,Guangdong
National Nature Reserve in Tongguling, Hainan
National Naval Aviation Museum
National Negro Convention
National News Agency
National Newspaper of Radio, Film and television Excellent Manuscript selection
National New Technology Telescope
National Northwest Library
National Northwest Union University
National Nuclear Laboratory
National Nuclear Safety Administration
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更新时间:2026/6/13 9:06:29