... enrichment culture ==> 富集培养,增殖培养,加富培养 enrichment factor ==> 浓缩率,浓缩因子,富集因子 enrichment layer ==> 浓缩层 ...
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（1）浓缩率（concentration factor）：浓缩程度一般用浓缩率m表达，浓缩率是一个以浓缩为目的的分离过程的最重要指标。
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并用uci中多个数据集从规则集的规则数目、数据浓缩率、预测能力等指标对该算法进行了测试。
At last, this paper USES some standard datasets of UCI database to test this algorithm in some aspects such as rules count of the rules set, data enriching, forecast accuracy of the rules set.
方法：用HPLC法考察不同的提取、浓缩及干燥方法对川芎嗪的提取率及转移率的影响。
Methods: To explore the influences of the different extraction, concentration and drying method on the transferring rate of TMP by HPLC.
结果表明：土壤胶体经hgms处理，氧化铁的浓缩倍数与提取率呈负相关。
Results indicated that the concentrating times of iron oxides by HGMS treatment was negatively correlated to the ratio of magnetic fraction extracted.
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