Spectrophotometric method and gas chromatography were the authorized national standard analytical methods to fusel oil.
国家标准规定分光光度法和气相色谱法为杂醇油的分析方法。
In order to make the TVOC measurement results comparable, its standard definition and analytical method is given.
为了使测得的TVOC结果具有可比性，本文给出了TVOC的标准定义和分析方法。
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