The level analysis is the modern and new method to analyse and diagnose a system, which is a combination of qualification with quantification.
层次分析法，是现代最新的系统分析诊断方法，也是一种定量和定性相结合的分析方法。
The sampling methods and conditions, qualification and quantification of the volatile organic compounds in environmental tobacco smoke were reviewed.
对环境烟草烟气中的挥发性有机成分的采样方式、采样条件以及定性定量方法进行了综述。
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