查询词典 perforated plate

A differential equation that is generally effective for squeeze-film air damping of perforated plate and non-perforated plate as well as in MEMS devices is developed.

推导建立了一个用于微电子机械器件压膜空气阻尼的一般化微分方程。

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。

Two basic models of cancellous bone structure include the model of rod-rod structure and the model of framework of perforated plate.

由于骨量的减少和骨质的降低使骨组织机械强度减弱，骨折的易感性明显增高。

For the multi-layer absorber composed of perforated plate, composed of perforated plate and cavity, composed of perforated plate, porous absorption material and cavity, the absorption coefficient is theoretically calculated.

论文回顾了主动消声、吸声降噪的发展历史与现状，阐述了主动吸声降噪有待解决的关键技术问题，提出了论文的主攻目标和研究内容。

For perforated plate,the thickness and the dimensions of the plate are not limited.

该方程很好地解决了分析有限尺寸孔板的边界和孔板的厚度对压膜阻尼的影响的困难。

The theory of active absorption using perforated plate is proposed in this dissertation.

通过数值计算，揭示了不同组合方式吸声结构与吸声系数的关系。

Methods For example simulated habitation cabin on ground, the air flow field distribution of habitation cabin was supplied through 2 modes, step air supply channel and perforated plate, and was analyzed with digital simulation and experiment. In addition, effect of inter-module flow on flow field was studied.

以某地面模拟居住舱为例，采用实验和数值模拟的方法给出梯形送风管道及孔板进风支管出流两种方案下居住舱的流场分布，并预测了舱段间回风对舱内流场的影响。

Moreover, based on the uniformity of solid axial distribution, the respective performances of the radiant orifice gas distributor and the perforated plate （1 mm） were compared, as well as with and without internals.

从固体轴向分布的均匀性分别比较辐射式锐孔气体分布器和1mm多孔板气体分布器的性能以及有／无内部构件的性能。

This paper analysed the functions of the basic structure of perforated plate for catalyst extruding machine.

本文对催化剂挤条机孔板的基本结构进行功能分析，用回归分析的方法建立数学模型，采用该模型的孔板能够保证催化剂的尺寸精度、增加强度、提高表面光滑度，并经实践证明是有效的。

The pressure drop of airflow consisting of pressure drop of the perforated plate and liquid-layer is mainly influenced by the plate dimension and bare tower velocity, with the increasing of bare tower velocity, pressure drop of the perforated plate increases. The experimental data are used to develop a correlation as follows:ΔpD＝1.04×10－82g This correlation should be used whenβ＜5％,0.299m/s＜u＜

空气流动的阻力主要由孔板阻力和液层阻力组成，孔板阻力主要受多孔板的几何尺寸及空塔速度的影响，空塔速度越大，孔板阻力越大，对实验数据进行回归分析得出的实验关联式为：ΔpD＝1.04×10－82g 公式适用范围：β＜5％，0.299m/s＜u＜

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。