目前，评价土壤中金属植物有效性的方法主要有：化学提取法、植物吸收试验、微生物和酶活性试验及同位素法。
The main methods now to evaluate Pb availability in soil are chemical extraction, plant adsorption, microbial and enzyme activation and isotopes tests.
综述了中孔活性碳纤维的国内外研究进展，着重介绍了活化工艺法、金属催化法、非金属添加剂法等制备方法。
In this paper, research work on mesopore activated carbon fiber at home and abroad is reviewed. Methods of pore size control such as activating process, metal catalyst and nonmetal add...
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