the results of this study can offer some perforation plate and acoustic absorbing body design reference materials for the acoustic engineers and architects.
本文的研究结果可为声学工程师及建筑师提供穿孔板和吸声体设计的参考资料。
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。
the study of the stem's secondary xylem of rhus chinensis mill reveals that perforation plate is simple perforation plate.
对盐肤木茎进行木材解剖学研究,发现其导管分子穿孔板为单穿孔板。
denoising experiment is carried out on discharge noise of single stage axial compressor by using acoustic system of micro perforation plate .