pyrolysis gas chromatograph

例句：

1. 1.The pyrolysis gas chromatograph was used to analyze the composition of the sample.
   使用热解气相色谱仪来分析样品的成分。
2. 2. The pyrolysis gas chromatograph was used to identify the source of the contaminant.
   使用热解气相色谱仪来识别污染物的来源。
3. 3. The pyrolysis gas chromatograph was used to determine the concentration of the pollutant in the air.
   使用热解气相色谱仪来确定空气中污染物的浓度。