Some factors that affect the sound level of the noise emitted from a three-channels nozzle were investigated.

研究了影响三通道喷嘴噪声声级的相关因素。

youdao

Some factors that affect the sound level of the noise emitted from a three-channels nozzle were investigated.

研究了影响三通道喷嘴噪声声级的相关因素。

youdao