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泥炭土
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泥炭土
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农学
泥炭土
释
Peat soil
泥炭土
潮湿条件下形成的具有厚泥炭层(有机质含量≥200克/千克)的土壤。中国土壤分类表(1950)中,列入隐域土纲水成土亚纲湿土土类,中国土壤分类表(暂拟,1954)中,列为沼泽土土类;中国第一次土壤普查(1961)中,列为下湿土土类、草炭土亚类;中国土壤分类暂行草案(1978)和全国第二次土壤普查分类(1988)中,列为水成土纲、泥炭土土类;在中国土壤系统分类(2001)中,相当于正常有机土;在美国土壤系统分类(1999)中,相当于有机土土纲;在世界土壤资源参比基础(2014)中,相当于有机土集合土类。
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electron beam irradiation
electron-beam irradiation
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electron beam melting purification of rare earth
electron beam melting technology
electron beam microfabrication of vacuum electronic device
electron beam modulation
electron beam parameter amplifier
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electron beam tube display equipment
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