英语词汇“precolumn”的意思、释义、用法解释及翻译-春雷网

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词汇	precolumn
释义	Definition of precolumn in English: precolumn noun ˈpriːˌkɒləm Chemistry A chromatographic column used to filter or modify a substance before it is passed through a second column. adjective ˈpriːˌkɒləm Chemistry Carried out prior to analysis or separation in a chromatography column. Origin 1950s. From pre- + column. Definition of precolumn in US English: precolumn nounˈpriːˌkɒləm Chemistry A chromatographic column used to filter or modify a substance before it is passed through a second column. adjectiveˈpriːˌkɒləm Chemistry Carried out prior to analysis or separation in a chromatography column. Origin 1950s. From pre- + column.
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