zhì / pǔ / fēn / xī / shì / jiàn / dìng / huà / hé / wù / jié / gòu / de / zhòng / yào / fāng / fǎ

质谱分析是鉴定化合物结构的重要方法。

Mass spectrometry analysis is an important method for identifying the structure of chemical compounds.