查询词典 perforated

Theoretical analysis and calculation on the acoustic properties of perforated panel absorber were described herein.

文章对穿孔板背面紧贴吸声薄层时的声学特性进行了理论分析与计算，并与实验结果作出比较。

Based on the theoretical and experimental studies in electrical and mechanical parameters, micro-perforated absorption material in the box, and positions optimization of the actuators and attached masses on the panel, several optimization methods for the acoustic performance of panel speaker are proposed.

基于对平板扬声器电－力参数测量、箱体内衬微穿孔吸声材料、驱动器以及附加质量位置优化的理论研究和实验测试，提出了若干种提高平板扬声器声性能的方法。

And the wall of test workshop is completely paved with 25mm thickness stainless steel perforated acoustic panel, 50mm cavity; using the sound lock double sound insulation door, the sizes are 2.4×1.64 m、2.149×1.04 m respectively; Double layer 3×8 mm thickness bulletproof glass sound insulation window, 50mm cavity; air inlet uses dissipative muffler, the size is 5×3×2 m, sound splitter is 150 mm thickness stainless steel protective facing.

试车间墙面满铺25 mm厚不锈钢穿孔吸声板，50 mm安装后空腔；采用声闸双重隔声门，尺寸分别为2.4×1.64 m、2.149×1.04 m；双层3×8 mm厚防弹玻璃隔声窗，50 mm空腔；进风口选用阻性消声器，尺寸为5×3×2 m，消声片为150 mm厚不锈钢护面。

The sensor pipe is supported in the sealing body and is positively and/or adhesively retained between the edges of peripheral ends of a perforated sheet.

检测器管在多孔套管周界端部边沿之间保持成在密封体内的形状和／或材料－密闭状态。

Perforated circular holes on backplate are laid out as hexagon to adjust air squeeze-film damping between diaphragm and backplate.

底板采用铜电镀技术制作，底板上呈蜂窝状分布的圆形通气孔用来调节敏感膜与底板间的空气压膜阻尼。

The result indicates that with the decreasing of perforated plate aperture、aperture ratio and weir height and increasing of bare tower velocity, the leakage is hardly to appear.

实验结果表明，多孔板的孔径、开孔率越小，堰高越低，空塔速度越大，越不易出现漏液。

Especially, we study the multi-scale asymptotic expansion and high accuracy algorithm for perforated composite materials in details.

第一章介绍了本文的目的与意义以及复合材料和多尺度有限元方法的重要性，给出了本文的一个概要。

Base on theoretical analysis, the method for determination of optimum perforated degree of reservoir with bottom water awl gas cap is presented.

根据理论分析，给出了气顶底水油藏最佳打开程度的确定方法。

The backplate is fabricated using a copper electroplating technology and perforated with circular vent holes.

采用低压化学汽相淀积工艺制作而成的复合敏感膜一端固定于硅基，其余部分处于自由悬浮状态，可以释放敏感膜的内应力。

A perforated nozzle that showers water on a bather.

在冰球运动中阻碍或阻止对方球员。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。