Both the extraction ratios of countercurrent multi-stage extraction and cross current multi-stage extraction were higher than single-stage extraction.
多级逆流或错流萃取的萃取率明显高于单级萃取。
Both the extraction ratios of countercurrent multi-stage extraction and cross current multi-stage extraction were higher than single-stage extraction.
多级逆流或错流萃取的萃取率明显高于单级萃取。
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