The effects of various parameters on boron particle ignition of ducted rocket secondarychamber were studied with the model developed by the King.
硼颗粒在通过固体火箭冲压发动机的燃气发生器喷管进入补燃室的过程中，颗粒通常都会受到高速气流的作用。
2
Combined with practical engineering, the several key problems concerning the vapour exhausting system for CCMS secondary cooling chamber were discussed and analyzed in this paper.
本文结合工程设计实践，对连铸机二冷室排蒸汽系统中的几个关键问题进行了分析。
3
The property of the hybrid active silencer relies on the equivalent impedance at the secondary sound source position and the impedance distribution characteristics of the one-chamber pipe itself.