molecular gas

例句：

1. 1. The study of molecular gases is crucial for understanding the behavior of matter under extreme conditions.
   研究分子气体对于理解物质在极端条件下的行为至关重要。
2. 2.The molecular gases in the atmosphere are composed primarily of nitrogen and oxygen.
   大气中的分子气体主要由氮气和氧气组成。
3. 3. The molecular gases in the laboratory are carefully controlled to ensure accurate measurements.
   实验室中的分子气体被严格控制，以确保测量的准确性。