本文概述了天然环境中多环芳烃的来源、分布和迁移转化规律。
A large number of research results have been made on the sources, distribution, transport and transformation of polycyclic aromatic hydrocarbons (PAH) in the natural environment.
悬浮物中各种金属元素在河口的分布和迁移过程主要有絮凝、吸附、解吸和沉淀等。
The results demonstrate that the distributions and transport of metal elements of SPM in the estuarine area are mainly flocculation, adsorption, desorption and precipitation, etc.
在不考虑横向烧结非均匀性的情况下，将烧结过程热状态描述为料层各带厚度的分布和迁移速度的变化。
Take no account of transversal heterogeneity, thermal state of sintering process is described as the change of the thickness of each zone in bed layer and migration rate.
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