“穿孔板”造句

板振动对微穿孔板吸声体的 声学 特性存在一定的影响.
The panel resonance always affects the absorption characteristics of microperforated - panel ( MPP ) absorber.

试验表明,微穿孔板吸声结构可有效地降低排气噪声.
Results show that the acoustic system of micro perforation plate can effectively reduce discharge noise.

• #穿孔板