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Luoping Biota
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Luoping Biota
Encyclopedia
理学
罗平生物群
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Luoping Biota
罗平生物群
中国云南省罗平地区中三叠统关岭组二段中部泥晶灰岩和泥灰岩中保存的化石组合。是中国三叠纪著名的特异埋藏化石群,距今约2.44亿年。
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powder for dry seed treatment
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powder metallurgy aluminum alloys
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powder metallurgy copper alloys
powder metallurgy friction materials
powder metallurgy iron-based products
powder metallurgy magnetic materials
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powder metallurgy materials with surper-fine crystalline structure
powder metallurgy mechanical parts
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