以下为句子列表：
英文: In general, smaller grain size and greater angularity tend to increase the porosity while an increase in range of particle size tends to decrease porosity.
中文: 通常，颗粒越小曲率越大孔隙度越大，而当颗粒尺寸增大时孔隙度会减小。
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英文: The results indicate that: Purification efficiency of phenol was better of wetland soil in which was not reed-planted; Both the residence time of phenol in soil and the range of particle size affected the adsorption ability of wetland soil; Through changi
中文: 结果表明，未生长芦苇的湿地土壤对苯酚具有较好的净化效果；苯酚在土壤中滞留时间、土壤的粒径范围均影响湿地土壤对苯酚的吸附能力；芦苇能改变土壤入渗率和根际土壤的理化性质，从而影响湿地土壤对苯酚的吸附能力。
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