The redox conditions in coal-forming environment are the important factor affecting the organic geochemical characteristics and the hydrocarbon-formings potential of coal.
成煤环境中的氧化还原条件对镜煤和丝炭各自有机地球化学特征和产烃潜力均有重要的影响。
Low molecular organic acids are commonly present and become an important factor in affecting transformation and transfer of heavy metals in environment.
低分子有机酸普遍存在于自然环境中，其与重金属阳离子的螯合作用是环境中重金属迁移转化的重要影响因素。
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