查询词典 diffusers

A conclusion is given that the radiance responsivities of the spectroradiometer obtained through these two kinds of diffusers are consistent within 1%.

同时利用两种漫反射板对此修正进行了实验研究，得到了采用两种漫反射板标定的光谱辐射计亮度响应度有很好的一致性(1%)的结论。

The second part of this paper presents a CFD-simulation of the performance of straight-walled and curved-walled micro nozzle/diffuser by FLUENT software. Such nozzle/diffusers are mainly used in micro venturi and also applied to valveless micropumps.

而在速度分布部分，当流量为5.338 mg/min时，宽度为150微米的喉部区流速已经高於声速，随后因速度不断增加，空气黏滞力影响了速度分布而产生了速度冲击现象。

To study on the turbulent flow in a centrifugal pump with vaned diffusers, based on CFD method, three-dimensional turbulent flow field in suction chamber, impeller and diversion shell was calculated at three different operating conditions, and the velocity and pressure distribution in diversion shell were obtained.

以带有空间导叶的离心泵为研究对象，通过CFD方法，在三种工况下，对包括吸入室、叶轮和导流壳在内的全三维湍流场进行数值计算，获得了导流壳内的速度分布和压力分布。

Such as: calibrating the laser system, calibrating the measurement region and focusing the CCD camera for the diffuser passage with complex shape, selecting the best incidence angle for the laser sheet,, setting the time parameter including the time between pulses and the time between records, designing the laser system, and selecting water fog with 1～5μm diameter as seedings for PIV measurement after comparing several particles. All of the work is useful to accumulate the PIV measurement experience in turbomachinery. 2. Experimental research of the unsteady flow in diffusers The instantaneous velocity fields within the vaneless and vaned diffuser were measured by using PIV technique.

本文在国内首次进行PIV测量系统对离心风机扩压器内部非定常流动的测量，为此，作者作了必要的实验前期工作：双谐振激光器工作特性的标定；针对扩压器复杂的流道形状，解决了片光源照射区域位置的标定和CCD相机的聚焦等问题；为复杂流道形状的扩压器内部流动的PIV测量选择了最佳片光源入射角度；选择了合适的PIV测量时间参数；为实现非定常内流的PIV测量设计了PIV系统的光路布置；根据非接触测量示踪粒子的选取原则，对几种示踪粒子进行了筛选，最终1～5μm的水雾粒子在本文实验条件下获得最佳效果。

The emphasis of this paper is attached on the aerodynamic performance of the stationary components such as vaneless diffusers and crossovers and their influence on the total aerodynamic performance of the whole machine.

研究结果表明，多级离心压缩机的性能不仅决定于各级动叶本身的气动性能，而且受级间静止部件的气动性能影响较大。

We also offer glass bongs Accessories: Replacement Blows (14.5 mm joint size or 18.8mm joint size), Downstems, Connectors, Diffusers, Joint Adapters for glass bongs (14.5mm to 18.8mm, 18.8mm to 14.5mm), Pre-Cooler and machine-made glass bong base.

创新的款式、优惠的价格、优质的产品和准时的交货使我们的产品出口到美洲、欧洲以及亚洲各国，我们可以贴牌生产或根据您的要求来样生产。我们真诚地希望与各地朋友建立长久的贸易往来。电话：+

We also offer glass bongs Accessories: Replacement Blows (14.5 mm joint size or 18.8mm joint size), Downstems, Connectors, Diffusers, Joint Adapters for glass bongs (14.5mm to 18.8mm, 18.8mm to 14.5mm), Pre-Cooler and machine-made glass bong base.

同时提供各种玻璃烟枪配件：14.5mm标准口，18.8mm标准口，14。。5mm到18.8mm转接口，机制六角底，机制圆底。

First, a full three-dimensional numerical model is developed, which considering not only the rib resistance to the species, but both the single- and two-phase flow and transport in the gas channels and diffusers at both the anode and cathode sides of PEM fuel cell. Two sets of boundary conditions, one for a conventional flow field and the other for an interdigitated one, are presented. A detailed discussion of the numerical techniques for the PEM fuel cell model is given with a flow diagram to provide an overview of the solution procedure using FORTRAN language.

该模型考虑了双极板上流道间的筋部对于反应气体传递阻力以及电流密度分布的影响，从而使模型具有三维特性；建模过程中进一步考虑了流道和扩散层中可能存在的液态水，从而将现有的单相流动模型拓展成为两相流动模型，因此，该模型可以同时模拟电池内部阴极、阳极侧流道和扩散层中两相流动的发生和分布情况；分别给出了平行流场燃料电池和交指型燃料电池的边界条件；详细讨论的三维模型的耦合求解算法和技巧；用实验数据验证的该模型的准确性。

ESSENCE OIL,NEBULIZING DIFFUSERS.

薰香精油，薰香瓶

"That is right, but it does not mean that the diffusers are illegal," Coulthard insisted.

&这是正确的，但它并不意味着扩散是非法的，&库尔特哈德坚持。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失