gas volumetric chromatography

例句：

1. 1. Gas volumetric chromatography is a technique used to analyze gases.
   气体体积色谱法是一种用于分析气体的技术。
2. 2. The gas volumetric chromatography method was developed to detect trace amountsof pollutants in the environment.
   气体体积色谱法被开发出来，用于检测环境中的微量污染物。
3. 3. The gas volumetric chromatography results showed thatthe sample contained high levels of methane.
   气体体积色谱法的结果显示，样本中含有高浓度的甲烷。