non-aerated flame

例句：

1. 1. The fire was caused by a non-aerated flame.
   这场火灾是由无空气火焰引起的。
2. 2. The scientist discovered a new type of non-aerated flame that could be used for industrial purposes.
   科学家发现了一种可用于工业用途的新型无空气火焰。
3. 3.The research on non-aerated flames is crucial for understanding the behavior of combustion in various environments.
   对无空气火焰的研究对于理解各种环境下燃烧行为至关重要。