solvent fractionated extraction
solvent fractionated extraction
溶剂分馏萃取
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Oxidation products of four raw coals and five extracted coals using hydrogen peroxide under mild conditions have been fractionated by solvent extraction and analyzed with GC/MS.
本论文用溶剂萃取法对四种原煤及其氧化产物和五种萃余煤及其氧化产物进行了族组分分离并用GC/MS 对各族组分进行分析。
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