The adsorption of TCE on natural soils could be divided into four stages: rapid-adsorption, slow-down adsorption, slow-speed adsorption and equilibrium adsorption.

• 三氯乙烯在天然土壤上的吸附过程可以划分为快速吸附、减速吸附、缓慢吸附和平衡吸附4个阶段。