madreporite perforated plate
The panel resonance always affects the absorption characteristics of microperforated - panel ( MPP ) absorber.
板振动对微穿孔板吸声体的 声学 特性存在一定的影响。
—— 给力词典精选Results show that the acoustic system of micro perforation plate can effectively reduce discharge noise.
试验表明,微穿孔板吸声结构可有效地降低排气噪声。
—— 给力词典精选