low-frequency combustion instability

例句：

1. 1.The low-frequency combustion instability of the engine is a critical factor affecting its performance.
   发动机的低频燃烧不稳定是影响其性能的一个关键因素。
2. 2. The study on the low-frequency combustion instability has provided valuable insights into the optimization of combustion systems.
   关于低频燃烧不稳定的研究为燃烧系统的优化提供了宝贵的见解。
3. 3. Understanding the low-frequency combustion instability can help engineers design more efficient and reliable engines.
   了解低频燃烧不稳定可以帮助工程师设计出更高效、更可靠的发动机。