product gas composition

例句：

1. 1.The analysis of the product gas composition is crucial for understanding its behavior.
   对产品气体组成的分析对于理解其行为至关重要。
2. 2. The study of the gas composition in the atmosphere is essential for predicting weather patterns.
   大气中气体组成的研究对于预测天气模式至关重要。
3. 3.The composition of the product gas is determined by the raw materials used during production.
   产品气体的组成由生产过程中使用的原材料决定。