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。
Refer to the instrument's instruction manual for information on a particular electrometer's internal damping feature. 关于特定静电计内部衰减电路的性能，请参阅该仪器的操作手册。
