1.
Design and Research on the Transparent Absorbing Structure of Microperfrated Panel;
通透微穿孔板吸声结构的设计及研究
2.
The Influence of Pore's Media on Sound Absorption Characteristics of Thick Microperforated Panel
孔中介质对厚微穿孔板吸声性能的影响
3.
Rudimentary Researches on the Acoustic Characteristics of Microperforated Panel Absorbers with Alterable Air-Cavity;
不等腔微穿孔板组合吸声结构的吸声特性初探
4.
The Computer Simulation Analysis of Micro Perforated Panel Spacial Absorbers (Rectangular Pyramid)
微穿孔板空间吸声体（四棱锥）的计算机仿真分析
5.
The research of perforated plate sound absorption in the flow
气流条件下微穿孔板结构吸声特性研究
6.
Acoustics Software Development of Micro-perforated Panel Absorber Based on AML
基于AML的微穿孔板吸声体的声学软件开发
7.
Improvement of the transfer matrix calculation method for micro-perforated plate absorption structure and experiments
微穿孔板传递矩阵计算方法的改进及实验
8.
Study on Acoustic Characteristic of Double Layer Micro-perforated Panel Absorber at High Temperature
高温下双层串联微穿孔板结构声学特性研究
9.
The Computer Simulation Analysis of Micro Perforated Panel Absorbers and Parallel Structures;
微穿孔板吸声结构及其并联结构的计算机模拟分析
10.
A Kind of Approximate Arithmetic for Micro-perforated Panel Absorber with Variational Cavity
单层变腔深微穿孔板吸声体的一种理论近似算法
11.
Could you tell me the price different between micro via PCB and through hole via PCB?
你能告诉我微过孔电路板与穿透式过孔电路板价钱的差别吗?
12.
TEST AND THEORETICAL RESEARCH ON BEARING CAPACITY OF MICROPUNCHED COMPOUND SANDWICH PLATE
微穿孔复合夹芯板承载力试验及理论研究
13.
Microstructure near the penetrated hole in an experimental penetration target and analysis of penetrating process
穿甲靶板弹孔微观结构观察及侵彻过程分析
14.
This board bores easily.
这块木板易於穿孔。
15.
INFLUENCE OF HOLE POSITION ON BENDING RIGIDITY OF UD-LAMINATE
穿孔位置对单向层板弯曲刚度的影响
16.
Stamp-tax, press the flower, engraving and bore hole the series ceiling.
印花、压花、浮雕、穿孔系列天花板。
17.
The Mode Analysis and Position Selection of Perforated Panel Absorber
穿孔板吸声结构模态分析及位置选择
18.
not punched card of paper or paperboard[fur punch card machines, whether or not in strips]
未穿孔卡纸或纸板卡片[用于穿孔卡片机,无庥是否条形]