1) multilayer microperfrated structure
双层微穿孔结构
1.
There are some parameters that influence the multilayer microperfrated structure,which make acoustic impedance and absorption cofficient to compute complicatedly.
影响双层微穿孔结构的参数很多,其声阻抗及吸声系数的计算复杂。
2) microperforated structure
微穿孔结构
1.
In this paper, the concept of "the average absorption coefficient" is put forward for the microperforated structures, and the transformation rule of "the average absorption coefficient" of different microperforated structures within certain band is computed and analyzed using computer.
提出针对微穿孔吸声结构的"平均吸声系数"概念,并通过计算机编程计算分析确定带宽内不同微穿孔结构"平均吸声系数"的变化规律,得到微穿孔结构参数变化时"平均吸声系数"的极值及所对应的微穿孔结构参数。
3) combine micro-perforated panel
组合微穿孔结构
4) dual pore structure
双孔层结构
1.
The dual pore structure of the LiCoO 2 cathode was favorable to mass transfer in either liquid or gas.
该阴极具有粗细双孔层结构 ,分别适应液相和气相的传质。
5) dual pore reservoir
双孔结构储层
6) Micro perforated absorber
微穿孔板吸声结构
1.
Based on this theoretical formula,a micro perforated absorber used to reduce ex- haust noise of flow duct was designed and was used in the noise reduction for the airplane MA60 APU.
研究了飞机APU排气噪声的降噪设计,建立了排气管道的微穿孔板吸声结构几何参数、气流参数等与吸声特性参数之间的关联关系,发展了排气管道微穿孔板吸声结构的理论设计方法。
补充资料：成都无缝钢管厂管坯在菌式穿孔机上穿孔
成都无缝钢管厂管坯在菌式穿孔机上穿孔
成都无缝钢管厂管坯在菌式穿孔机上穿孔
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条