instability combustion的用法和样例：
例句
- Finite element method is used in the study of nozzle damping of instable combustion in a solid rocket motor.
应用有限单元法研究固体火箭发动机不稳定燃烧中的喷管阻尼，并用波衰减对比法进行了试验研究。 - Afterburner systems, designed to operate up to a stoichiometric overall mixture strength, are always fairly close to combustion instability or screech.
要使加力燃烧系统在理论化学组成量的总混合浓度下还在一直工作，这样的设计通常都很接近于不稳定燃烧或振荡燃烧。
