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central plane     
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  中心面
     Furthermore, the fluid flow in the 2D central plane of continuous slab casting mold is computed, especially the evolution with time of flow with high Reynolds number is simulated, and the simulated flow patterns are found to be in excellent agreement with the previous experiment results, which show that the turbulent flow with high Reynolds number inside the mold is swirly, asymmetric and unsteady.
     在此基础上计算了板坯连铸结晶器中心面内的二维流动,模拟出流场在高雷诺数条件下流动模态随时间的变化过程,得到与试验结果一致的流场结构,较真实地反映高雷诺数条件下结晶器内湍流的有漩性、非对称性及非定常性。
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  正中平面的
     Measurement in cross section image: 1Distance of medial border of longus colli of central plane of C3-7 each vertebral body was 0.1 mm exactly.
     在横断面图像中测量:①C3~7各椎体正中平面的颈长肌内侧缘距离,精确到0.1mm。
短句来源
     2Transverse diameter of central plane of each vertebral body was measured.
     ②测量各椎体正中平面的椎体横径。
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  中心平面
     The results from theoretical analysis and OPERA program simulation show that the kicker magnet satisfies all requirements of BEPCⅡ storage ring. In the range of Δ x =±20mm, the field uniformity is ±0.6% in the central plane, ±0.7% in the y =5mm plane and ±2.9% in the y =10mm plane.
     理论分析和瞬态OPERA程序模拟计算的结果表明 ,在Δx =± 2 0mm的范围内 ,中心平面上场的均匀性为± 0 .6 % ,y =5mm的平面上场的均匀性为± 0 .7% ,y =10mm的平面上场的均匀性为± 2 .9% ,均优于BEPCⅡ储存环注入对冲击磁铁的设计要求 .
短句来源
     Temperature distribution on the central plane and those 5? cm above and below were also tested.
     以及不同循环水温度时体模水平中心平面及其上下各 5cm处平面内的温度分布。
短句来源
     The asymmetry of CVP about the central plane of the jet was also observed which was the conclusion of experiment.
     计算表明,逆向旋转涡对并非严格关于射流中心平面对称,而是随时间左右摆动,与试验结论一致。
短句来源
     In contrast, the results of standard k-εturbulence model show the CVP was exactly symmetrical about the central plane of the jet, the shear layer vortical roller and the upright vortex in the wake were not observed.
     标准k-ε湍流模型得到的逆向旋转涡对严格关于射流中心平面对称,同时不能获得射流上游的剪切层涡卷和垂直上升尾涡。
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  “central plane”译为未确定词的双语例句
     On the central plane, the infrared reflectivity of vegetation increases with the increase of view zenithangle, and the red reflectivity decreases slightly;
     主平面上植被近红外反射率随观测天顶角的增加而增加,红光反射率则略有下降;
短句来源
     structure strain field and sedimentarymatter source etc. ② Ⅱ grade Contemporaneous split screen pattern activity have controlledevery subsidence central plane migration in the region of Wennan,the activityof Ⅱ grade contemporaneous split and associated fault have formed 6 kindsoil-gas reservoir pattern or compose;
     ②文南地区Ⅱ级同生断裂幕式活动,控制了各沉降中心的平面迁移,Ⅱ级同生断裂及伴生断层的活动形成了六种油气藏类型或组合。
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     The properties of the hot electron ring have been measured with an X-ray detector on the simple mirror device MM-2.The hot electron temperatureis about 140 170 keV.the radius of the hot electron ring is 7 cm and its thickness about 4 cm. The axial boundary of the ring extends from Z=±10cm to ±20crn. where Z is the distance to the central plane of the device.
     使用碘化钠(NaI)探测器,对MM-2简单磁镜装置中热电子环参数进行了测量,得到热电子温度为140—170keV,热电子环的半径为7cm,其径向厚度为4cm,轴向尺寸边缘区域从±10cm延伸至±20cm,同时也观测到了热电子密度沿径向分布,环的位置与磁场强度的关系以及硬X射线发射的时间特性。
短句来源
     Discusses the streamlines in central plane and presents some expressions for flow rate and resistance coefficient.
     讨论了中心面上的流线。 给出了流量以及阻力系数的计算式。
短句来源
     Taking displacement function and similar displacement function of central plane of the plate as independent variables, a motion equation of anisotropy plate with two independent displacement functions is set up. Using this equation to the analysis of three layers plate with plance truss continuous transformation, a good result is obtained.
     Reissner-Mindlin型板,以板的中面的位移函数和类位移函数为独立变量,推演出具有两个独立位移函数的各向异性板的运动方程,将其应用到由平板网架结构连续成的三层夹层板,取得良好的效果。
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  central plane
The central plane of the cavity is perpendicular to the axis of the cylinder, and the cylinder is subjected to bending.
      
It is observed that in the theory of Cosserat fluids the curvature of the streamlines in the central plane increases and the motion is slower in the cross-section of the pipe.
      
The paths of the particles in the central plane and the projection of the streamlines on the cross-section of the pipe are compared with those of a Newtonian fluid.
      
It is found that the velocities of the gas and particles are maximum in the central plane of the channel.
      
The velocity fields, which were measured, using a photographic technique were thought to model the electromagnetically driven component of the velocity field in the central plane of the slag phase in ESR systems.
      
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In this paper, we used the more rigorous general relativistic viscose hydrodynami-cal equation to discuss and calculate the temperature profile in the accretion disk around a Kerr black hole. We argued that in the accretion disk around a black hole, it is significant in principle for considering the release of the internal energy of the accreting materials. Taking the effect of internal energy of the accreting materials into account and using the classical theory, we have shown that the occurrence of solution...

In this paper, we used the more rigorous general relativistic viscose hydrodynami-cal equation to discuss and calculate the temperature profile in the accretion disk around a Kerr black hole. We argued that in the accretion disk around a black hole, it is significant in principle for considering the release of the internal energy of the accreting materials. Taking the effect of internal energy of the accreting materials into account and using the classical theory, we have shown that the occurrence of solution of the abnormal temperature profile around a Schwarzschild black hole is possible. In this consistent solution, the temperature profile are not always monotonic, i.e. the temperature is not always a monotonic descending function of the raduis r, not as that of the usual case, but there exists probably a temperature profile with maximum at the certian raduis, in consequence it is existed a cooling region.In order to discuss this subject further, it is natural logically development to using the more rigorous relativistic hydrodynamical equation. Therefore, we will follow the general methods by Bardeen, J. M., Press, W. H., Teukolsky, S. A., and Novikov, I. D.. Thome, K. S. et al. to establish a possible model of accretion disk for the Kerr black hole. Our fundamental assumptions are: (1) The central plane of the disk coincides with the equatorial plane of the black hole. The disk is a perfectly aixal-symmtrie and is thin; (2) The orbital motions of the materials in the disk are controled mainly by the gravitational pull of the hole so that the orbits are very nearly geodesic, while the component of the velocity in the radial direction is very small and the motions in the direction normal to the disk may be neglected; (3) The dominate pressure is the gas pressure, but the radiative pressure is negligble; (4) The radial heat transfer is very small in comparison with the energy radiated from the surface of the disk; (5) The internal energy of the accreting materials in the disk must be calculated. Under these assumptions, our main conclusions obtained are: (1) If the radiative mechanism of the materials in the disk is the black-body radiation, the result is coincidence with the classical theory, whatever kind of the viscose law be; (2) For free-free radiation, the temperature profile is in substance just like the classical case. Thus it is further demonstrated theoretically that there exists indeed such a possible accretion disk around the Kerr black hole which has a fast cooling ring region just laid inside the temperature maximum as its main character. In this cooling ring region, there are probably some pecularities which have not existed for the usual temperature profile.

本文采用较严格的广义相对论粘滞流体动力学方程,讨论并计算了在Kerr度规下黑洞吸积盘的温度分布问题.结果表明,对于绕Kerr黑洞的吸积盘,温度确有极大值的分布轮廓.而且,当盘内物质的辐射机制是黑体辐射时,不论粘滞机制属于何种类型,结果都一样;对于自由—自由辐射,采用a粘滞律模型,与我们在文[1]中所得的结果十分类似.这表明文[1]中所取的近似足合适的.计算还表明,在温度极大值所处半径的内面,有一迅速冷却的环状区域存在.在这一环状区域内,有可能具有某些在通常温度分布时所没有的特性.

The paper presents a derivation of the locus equation of rectangular waveguide of which index distribution function is n(x) = no (1 - 1/2 Ax3). The locus of light rays can be described with logarithmic function as incidence plane is the central plane having refraction index no, and tne locus of light rays can be indicated with arc tangent function as incidence plane is in edge which has index of n(X). When tangential plane crosses no plane, the locus of paraxial rays locating in tangential...

The paper presents a derivation of the locus equation of rectangular waveguide of which index distribution function is n(x) = no (1 - 1/2 Ax3). The locus of light rays can be described with logarithmic function as incidence plane is the central plane having refraction index no, and tne locus of light rays can be indicated with arc tangent function as incidence plane is in edge which has index of n(X). When tangential plane crosses no plane, the locus of paraxial rays locating in tangential plane is a well-known sinuous function.

本文导出了以单边梯度变化的矩形介质板作轴向梯度透镜的光线轨迹方程.在以中心折射n_o面为入射面时,光线的轨迹为对数函数曲线,而以边缘折射率n_(x)为入射面时,光线轨迹为反正切函数,由此可以考虑在光学系统中的应用.

Three velocity components of the turbulent separation region downstream of the backward facing step in a 2-D duct was measured by a dual-differential frequency shift LDV system. The flow model has a step height of 20mm with the expansion ratio of 2-1 and aspect ratio of 3:2. The experimental Reynolds number was 5700.The results showed the shape of 3 D separation region and demonstrated a pair of transverse vortices existing in the region just behind the step. The reattachrrient length is the longest in the central...

Three velocity components of the turbulent separation region downstream of the backward facing step in a 2-D duct was measured by a dual-differential frequency shift LDV system. The flow model has a step height of 20mm with the expansion ratio of 2-1 and aspect ratio of 3:2. The experimental Reynolds number was 5700.The results showed the shape of 3 D separation region and demonstrated a pair of transverse vortices existing in the region just behind the step. The reattachrrient length is the longest in the central plane and decreasing in the planes gradually closed to the side wall. Photographs obtained by the laser visualization technique showed the flow patterns which are of well agreement with the LDV measurements.

用实验方法测量了非对称阶跃扩张管道中湍流分离区的三维速度分布。测量是用自制的双差动型声-光频移二维激光测速仪完成的。管道扩张比为2:1,展高比为3:2,实验雷诺数为5700。在分离区紧靠台阶的下游,测得了一对展向涡,涡心位置随高度略有变动。沿展向再附点的位置也不同,在中心截面再附长度最大,接近两侧壁时分离区有缩小趋势。用激光可视化技术得到了回流区和展向涡的流动图形,与激光测速的定量结果很一致。

 
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