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internal flow passage 内道
928。An experiment was carried out to investigate hydraulic performance in internal flow passage of a PY-140 impact sprinkler with different bullet-shaped straighteners and nozzles. 摘要：对PY-140型摇臂式喷头在不同的弹尾形稳流器与喷嘴直径组合工况下进行了喷头内流道水力性能试验。
Internal flow Road evenly reasonable design,distribute streaming delicate. 内部流道均匀设计合理，分流细腻。
Consider a row of guide vanes in a compressible internal flow as shown below. 如下图所示，考虑可压缩内部流中的一排导流叶片。
A flow passage in a wind tunnel that decelerates a stream of gas or liquid from a high to a low velocity. 扩散道风洞中的气流变迁，将会调整度的气体或液体流降到低速
B, Color Doppler sonogram shows increased internal flow within the mass. 图1B，彩色多普勒声像图显示肿物内血流增多；
In the present paper, the three-dimensional steady turbulent flow is simulated through the whole flow passage of the Kaplan turbine model after the experiment on the turbine. 本文在进行模型水轮机试验的基础上,完成了开敞式蜗壳轴流式模型水轮机的全流道三维定常湍流计算。
The working principles of nozzles with plane and cylinder spiral flow passage respectively, are analyzed from the angle of hydrokinetics. 从流体动力学角度分析了平面螺旋流道型和圆柱螺旋流道型喷嘴的工作原理。
The results show that a part of the flow passage of the valve seat is occupied by the cavity under the valve head, leading to a decrease of flow rate. 研究结果表明：阀碟下方的空穴区占据了阀座喉部通流面积的一部分，使得有效的通流面积减小，影响了阀门的通流能力；
In the reconstruction of Changqiao Waterworks, an underground water abstractive flow passage was designed to replace the routine absorbing well. 在长桥水厂改造中,结合渠道输水,借鉴大型立式泵常用的前池和流道形式,设计了埋地式吸水流道,代替常规吸水井。
However, inlet, the first part of flow passage, works as a collector and guider.The flow field of inlet should be studied in detail. 进风口作为气体流动经过的第一个部件，起到了引流导流的作用，进口流场值得深入研究。
The Current Status and View of Internal Flow Numerial Simulation for Centrifugual Pump Impeller. 离心泵叶轮内流数值模拟的现状和展望。
It is found that typical characteristics of the internal flow of the multiblade radial fan can be predicted well. 对比结果显示：虽然二者在量值大小与分布位置有一些差异，但数值模拟能够预测出典型的流动特征。
By controlling the piston stroke and the resistance on flow Passage,the fluid lift height and the pump speed can be controlled,thereby ideal lifting effect can be achieved. 通过控制活塞行程及泵内流道阻力，从而控制泵举升液柱的高度和泵的运行速度，取得理想的举升效果。
The result of DPM agreed well with the analytic solution of fully developed laminar internal flow of air. 以充分发展的空气圆管层流流动为例，与解析解的结果进行了对比，验证了分布参数模型的正确性。
By using the casing pump,the maximum fluid lift height,actual fluid lift height,stroke of the pistonand the resistance on flow Passage should be determined. 应用套管泵时，应计算确定泵的最大举升液柱高度、实际举升液柱高度、活塞行程和流道阻力。
Two type newly developed rotary valves for mine use are introduced.They are characterised by single or double cylinder valve cores which form a flow passage of U or O shape. 介绍了两种新研制的矿用旋转阀，两阀的特点是阀芯为单柱或双柱体，构成U或O形的过流通道，在全启至闭的整个调节范围内，通道形状保持不变而面积为线性变化。
It is at least formed from several layers of oblique-type mellapak structured packing layer in which the medium flow passage with a certain obliqueness is respectively set. 所述的轴向导流的板波纹规整填料层的高度小于或等于相邻层的斜型板波纹规整填料层高度；
The internal flow field of a two stage turbine with double shafts was simulated by solving the steady Euler equation with loss model. 通过求解由粘性力引入损失的Euler方程，模拟了某型两级双轴涡轮的内部稳态流场。
Through analysis on the geometry of electronic expansion valve (EEV) flow passage, the working passage of EEV was simplified to a series of short nozzles. 摘要通过对膨胀阀内节流工作段几何结构的分析，将其简化为短喷嘴结构。