Furthermore, assuming the gas is in the hydrodynamic equilibrium, the volume filling factor of the X-ray gas, b, is found to be about 0.69±0.28. Moreover, the parameters of the relativistic particles of the radio gas are estimated, and then the impact of the expansion of the radio gas on the cooling flow is considered.
进一步，假设气体处在压强重力平衡状态，计算了中心区域的X射线气体的体积占有率为b=0.69±0.28，并且讨论了射电气体所包含的相对论性粒子的性质以及射电气体膨胀对冷流的影响。
The former equipment is developed and the rectifying experiments are carried out with upper feed and bottom feed types. The effects of pressure, temperature field of rectifying column, CO〓 volume of flow and its total volume on the results are researched.
对原有设备进行了改进，分别以底部进料及顶部进料方式进行了α-生育酚的精馏浓缩实验，研究了操作压力、精馏柱温度场分布、CO〓流量及消耗量对萃取—精馏效果的影响并进行了详细的分析。
Most difficult of all is to estimate the volume of storm water likely to flow in a drain or sewer.
最困难的是估计暴雨后可能流入管内的水量。这种对泥石流粘度的估计确实给我们提供了一些泥石流惰性方面的概念。
Most difficult of all is to estimate the volume of s to rm water likely to flow in a drain or sewer.
最困难的是估计暴雨后可能流入管内的水量。
In this thesis, two different types of coat hanger die was proposed for the extrusion foaming process with a physical blowing agent. A flow model of two-dimensional control volume method was utilized to simulate the non- isothermal and non-Newtonian flow behavior in a coat-hanger die used for the extrusion foaming process.
本研究针对押出物发泡制程提出两种同型式的衣架型模头，并采用二维控制体积法之流动模式去模拟非等温、非牛顿型体於两种物发泡衣架型模具内之动。
The research works included the development of mathematical models for the direct prediction of shear viscosity of a molten polymer containing a dissolved gas and of the critical pressure under a certain temperature and solubility of gas in the melt. Based on this prediction, the aforementioned control volume method is then used to establish the flow model of a coat hanger die. In addition, a Taguchi method was coordinated to establish a software for the analysis and optimal design of a coat-hanger die for the foam extrusion which requires a high foaming ratio with a physical blowing agent.
其中包括以学模式直接预测含有溶解气体但发泡的胶其剪黏η，及在某温及某气体溶解下之发泡临界压值，并以此为依据，用上述控制体积法搭配田口法，建胶在模头内之动模式，成功地建供以使用物发泡剂做为高发泡倍用之一套衣架型模具设计及分析软体，以对模具几何形状进最佳化设计。
It was shown that, the flow pattern in the EMPT was more complex than that in traditional one, that is, in the column chamber, the short circuit flow from the outlet nozzle of the ladle was depressed by the rotating molten steel, and horizontal recurrent flow appeared in rectangular chamber, which prolonged the average staying time of the molten steel, then reduced the volume fraction of inactive area in EMPT.
结果显示，电磁净化中间包的流场比传统中间包的流场复杂：在圆形腔中，旋转运动抑制了大包水口至矩形腔的短路流，而在矩形腔中形成水平环流，从而延长钢液在中间包的平均停留时间，死区减小，电磁净化中间包的上述流场结构及传输行为对钢液中的非金属夹杂物去除非常有利。
This paper analyzed the motion of the unsteady air and water in jig, and deduced the movement equation of this system. On the basis of the equation, the changes of pressure in the air chamber and the movement that caused by characteristic curve of air valve and air pressure or the volume of flow are calculated by use of numerical method, and also the start state of jig is analyzed.
本文运用流体动力学对跳汰机中的空气—水这一非稳定体系的运动过程进行了分析，导出了该系统的运动方程，用数值计算得出一跳汰周期内空气室内的压力变化规律及风阀周期特性或风压、风量变化时引起的跳汰水流的变化规律，还对跳汰机起动过程进行了分析。
In this chapter, the author discusses and provides the basic flow chart of volume visualization of the 3D geo-modeling by uniting the practice of geo-research.
在本章，作者结合地学研究的实践，探讨并提出了3D地学构模中的体视化基本流程图。
Color Doppler blood flow imaging was used to detect the blood supply of intra- and peri- tumors in metastatic hepatic cancer. Results Hyperecho, hypoecho, anecho, iso-echo and mixed echo were presented in ultrasonography of all the patients. CDFI showed that the blood supply of intra- and peri-tummors in MHC was mainly from peri-tumor artery-vein double supply. The richness of blood supply was positively related to tumor s volume.
结果 不同病理类型的鼻咽癌发生肝、脾、胰、腹膜后淋巴结等腹部转移的声像图均可表现为高回声、等回声、低回声、混合回声、无回声等5种特征或其中部分特征；CDFI示MHC瘤内及瘤周的供血以瘤周动、静脉双重供血为主，各种不同病理类型亦无相应的专一性特征，血供丰富程度与瘤体大小成正比。
objective to explore the ultrasonic features of metastatic abdominal tumors from nasopharyngeal carcinoma and its correlations with the histopathological type of primary foci. methods 40 cases of metastatic abdominal tumors from nasopharyngeal carcinoma confirmed pathologically from january 2001 to june 2005 were enrolled. the most typical one of all the ultrosonagraphic imagings was studied for the same case. color doppler blood flow imaging was used to detect the blood supply of intra- and peri- tumors in metastatic hepatic cancer. results hyperecho, hypoecho, anecho, iso-echo and mixed echo were presented in ultrasonography of all the patients. cdfi showed that the blood supply of intra- and peri-tummors in mhc was mainly from peri-tumor artery-vein double supply. the richness of blood supply was positively related to tumor s volume. conclusion histopathological type of nasopharyngeal carcinoma doesn t correspound to an exclusive ultrasonography of such metastatic abdominal tumor in liver, spleen, pancreas and retroperitoneal lymph nodes without result of differentiation from primary abdominal tumors. and the ultrasonic imagings of metastatic abdominal tumors from the same type of primary focus vary.
目的 探讨鼻咽癌发生肝脏等腹部脏器转移的超声图像与原发灶病理类型的相应关系。方法以临床已经病理确诊为鼻咽癌并且已发生腹部器官、组织转移的住院或门诊患者为研究对象，相同病例以多次b超中最典型的一次声像图统计；彩色多普勒血流成像主要检测转移性肝癌瘤内及瘤周的血供情况。结果不同病理类型的鼻咽癌发生肝、脾、胰、腹膜后淋巴结等腹部转移的声像图均可表现为高回声、等回声、低回声、混合回声、无回声等5种特征或其中部分特征；cdfi示mhc瘤内及瘤周的供血以瘤周动、静脉双重供血为主，各种不同病理类型亦无相应的专一性特征，血供丰富程度与瘤体大小成正比。结论不同病理类型的鼻咽癌与其发生肝、脾、胰、腹膜后淋巴结等腹部转移后的声像图之间无一一对应的特征表现，与其他原发性肿瘤发生腹部转移不能区别；相同病理类型的鼻咽癌，其腹部转移癌的声像图特征也表现为多样性。
Self-adaptive finite volume method combined with kinetic chemical reaction model was programmed to simulate the flow field.
采用自适应有限体积程序结合基元化学反应模型对流场进行了数值模拟。
For an arbitrary system of steady-flow and constant volume reactors, the concept of theattainable region is extended by the consideration of the recycle material from separation.
本文从化工过程系统综合优化的角度出发，以定态、等容反应过程为研究对象，在可得区内考虑分离回收的循环物流，通过几何方法分析总收率等值线与可得区的关系，导出了通用的反应-分离循环系统的最佳工艺条件方程。
And researching in the question of the high speed and big volume of flow in hydraulic system design.
摘 要：本文通过工程实例，研究讨论了液压系统设计中常见的大流量高流速问题。
They measure the actual volume of gas flow.
他们测量气体流动的实际通量。
These vortices create a force on a sensor wing that moves in proportion to the volume of flow.
这些旋涡的力量创造一个传感器翼移动中所占的比例流量。
The most dialysis volume of blood flow and the urea nitrogen were ex...
结果治疗后最大透析血流量≥180ml/min的14例，有效率77.8%。
Results: The volume of blood flow in patients` deep tissue increased for 50%~...
改善局部深层病变组织血液循环是银质针治疗取得显著疗效的一个重要作用机理。
The result shows that the influence of maximum water content in root zone storage is least on depth of runoff volume; the overland flow runoff coefficient, time constant for interflow and time constant for routing interflow and overland flow have remarkable impacts on flood peaks; the influence of maximum water content in surface storage and maximum water content in root zone storage is less on flood peak flux; the
研究结果表明，浅层蓄水容量对NAM模型模拟径流深的影响最小；地表径流系数、壤中流出流时间、地表径流和壤中流汇流时间常数对NAM模型模拟洪峰流量的影响较大，地表蓄水层蓄水容量和浅层蓄水容量对NAM模型模拟洪峰流量的影响较小；地表径流系数对NAM模型模拟峰现时间的影响最大，壤中流出流时间对NAM模型模拟峰现时间的影响最小。
The unsteady flow and heat transfer in pressure wave refrigerator is investigated numerically in the present paper. The Godunov scheme and control volume method are used to solve the 1D Euler integral equations and heat transfer equation respectively.
建立了振荡管内非定常流动与传热的数学模型，分别采用Godunov格式和控制容积法对气动方程及传热方程进行离散，得到了管内压力波形、气流速度及温度随时间的变化历程。