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Trend analysis was made with the PEMS software.
用PEMS软件做升降趋势分析。
Methods: Using PEMS statistic software to deal with the data of the fifth census.
方法:利用PEMS统计软件对第五次人口普查资料进行分析处理。
According to the size exclusion effect, the PEMs have selectivity over H2O2 inthe presence of ascorbic acid and uric acid.
根据体积排除机理,聚电解质多层累积膜在抗坏血酸和尿酸存在下对H2O2有选择透过性。
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