The guide problem about aircraft cabin environment acoustic design is fully elaborated and a lot of general engineering figures and tables are given.
对飞机座舱环境声学设计的先导问题进行了充分论述，并展示出大量的工程适用图表。
2
An acoustic treatment technology of honeycomb sandwich stiffened structure to reduce cabin noise for propeller airplanes is presented briefly.
本文简要介绍了在螺旋桨飞机座舱降噪设计中采用的蜂窝刚度处理技木。
3
If predicting Shipboard cabin noise in the early stages of ship design, proposed measures to improve the acoustic design, it is very important to shorten the shipbuilding cycle and reduce costs.