4.5) and acetonitrile in a gradient-elution analysis programmed as的翻译：4.5) and acetonitrile in a gradient-elution analysis programmed as 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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4.5）和乙腈梯度洗脱分析编程为

4.5) and acetonitrile in a gradient-elution analysis programmed as

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4.5) and acetonitrile in a gradient-elution analysis programmed as

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