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垂直切
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  vertical shear
     THE STUDY OF THE BURGERS-KdV EQUATION OF ACOUSTIC GRAVITY WAVES IN THE VERTICAL SHEAR WIND
     垂直切变风场中声重波的Burgers-KdV方程研究
短句来源
     The KdV Equation of an Acoustic Gravity Wave in the Vertical Shear Wind
     垂直切变风场中声重波的KdV方程
短句来源
     It is shown that in the tropical easterly waves, if the easterly is intensified with increasing height, in the vertical shear of basic air flow provides easterly, then bad weather area is occurred to the west of the trough lines.
     指出:在热带东风波区域中,若东风随高度增强的地区,基本气流的垂直切为东风,则坏天气区在槽线以西;
短句来源
     In this paper, we have derived the Burgers-KdV equation of an AGW in the vertical shear wind from the compressible hydrodynamic equations with towing effect by the reductive perturbation method and investigated its nonlinear properties.
     本文从可压缩流体的原始动力学方程出发,利用二维约化摄动方法推导出垂直切变风场中考虑曳引效应的二维声重波的Burgers-KdV方程,并对其非线性性态作了一些研究.
短句来源
     Using the two-dimension reductive perturbation method in this paper,we derive the KdV equation of an acoustic gravity wave in the vertical shear wind,and prove that the AGW is the excited source of the medium scale TID.
     本文利用二维约化摄动方法推导出垂直切变风场中声重波的 KdV 方程。 从而进一步证明中尺度 TID 的激发源是声重波这一尚未弄清的问题。
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  vertical cut
     Assessment of critical stable height of vertical cut slopes of unsaturated soils considering drying shrinkage cracks on ground
     考虑干燥裂缝时非饱和土垂直切坡临界自稳高度
短句来源
     Based on the two variables of stress state, formulas for estimating the critical stable height of vertical cut slopes of unsaturated soils are established respectively for two cases in which suction is constant or linearly decreases with depth.
     利用双应力状态变量表示方法,建立了考虑干燥裂缝时吸力沿深度均匀分布和随深度线性减小两种情况下垂直切坡极限自稳高度表达式.
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  “垂直切”译为未确定词的双语例句
     The strength of the grafts prepared by parallel cutting decreased significantly as compared with the perpendicular cutting(P<0.05).
     垂直切取优于平行切取的骨块强度(P<0.05)。
短句来源
     Methods The CCS of 886 cases (737 cases were noncardiac death,149 cases died of sudden cardiac death) were examined histologically using the method designed by the authors that tissues containing the SAN and AVN were cut along the long axes of the nodes in 1-2 block and the HB perpendicular to its long axis 2-4 blocks. The morphology and causes of death in CCS of two groups were also studied.
     方法 用我们建立的CCS检查法 ,即窦房结和房室结沿其长轴切 1~ 2块 ,房室束沿长轴垂直切 2~ 4块 ,连续切片 ,间断取片 ,每例共取 30片。 对 886例 (非心源性死亡 737例 ,心源性猝死 149例 )人CCS进行组织学观察 ,并对两组进行CCS形态、死因分析比较。
短句来源
     Propagation and Evolution of an Acoustic Gravity Wave in a Region of Wind Shear
     声重波在垂直切变风场中的传播与演变
短句来源
     This paper discusses the actions and necessity of wafer grinding technology. According to quality of wafer surface grinding process, it studies principle of Creep-Feed and In-feed, bringing forward the principle and questions for design.
     从对晶片减薄的质量要求角度出发,论述了垂直缓进给(Creep-Feed)晶片减薄原理与垂直切深进给(In-Feed)晶片减薄原理。 提出原理设计中的原则和相关问题。
短句来源
     In this paper, the variation of spectral structure of acoustic gravity waves (AGW's) propagating through a region of vertical wind shear is investigated.
     本文研究声重波在垂直切变风场中传播时谱结构的改变。
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  vertical shear
The disturbances arising in the background horizontal flow with vertical shear directed along the convective rolls are also calculated.
      
Surface gravity waves in deep fluid at vertical shear flows
      
Special features of surface gravity waves in a deep fluid flow with a constant vertical shear of velocity is studied.
      
This vertical shear of mean flow is to some extent weakened by thermal forcing.
      
The essential elements in the storm formaton are the strong horizontal shear in the cyclogenetic areas, a lack of vertical shear and warn sea surface temperatures.
      
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  vertical cut
The results given refer to the atmospheric depth of 1 g/cm2 for γ-rays and of 2, 4, 6 g/cm2 for electrons, at the geomagnetic vertical cut-off rigidity of 0.5, 2, 4.5, 10, 16 GV at solar minimum.
      
The horizontal limb starts from the centre of the vertical cut and ends above the attachment of the tendo achillis.
      
The remedial alternatives considered for normal conditions from 20 to 40?year periods were waste removal, vertical cut-off barriers, extraction wells and top capping.
      
The density of a placement is the maximum number of nets crossing each vertical cut.
      
It is a kind of aesthetic act that makes the sense appear, like a vertical cut in the sequential line of space and time.
      
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The flow region around the wing-body combination is transformed by locad Jonkowski transformation into the one around a wing alone for the case with the body of circular cross section. The body-fitted "O" mesh around the transformed wing alone is constructed for each grid section by numerical conformal mapping, and is then, transformed back to form 3 -D bodyfitted mesh around the given wing-body combination. The transonic flow computation is performed by the use of conservative full-potential equation with exact...

The flow region around the wing-body combination is transformed by locad Jonkowski transformation into the one around a wing alone for the case with the body of circular cross section. The body-fitted "O" mesh around the transformed wing alone is constructed for each grid section by numerical conformal mapping, and is then, transformed back to form 3 -D bodyfitted mesh around the given wing-body combination. The transonic flow computation is performed by the use of conservative full-potential equation with exact boundary conditions and the efficient iteration scheme in finite difference method AF2. It is shown that only a few changes needed to expand the computer program for wing alone to cover wing-body combinations. The presented method is limited to the combinations which consist of the bodies of finite or infinite lengths with curved axes and circular cross sections, and the wing of arbitrary planform with finite wing tip. The computations for the combination with highly tapered and swept wing, nevertheless, is still a difficult problem.

本文用Joukowski交换将圆截面机身的每一横截面逐一转绘为垂直切缝,因而将翼-身组合体转绘为某单独机翼。我们用作者采用过的数值保角转绘法对转换的单独机翼生成O型贴体坐标网格,然后用逆转绘构造翼-身组合体绕流的O型贴体坐标网格。跨音速计算采用守恒型金位势方程,精确边界条件和AF2高效有限差分迭代算法。本文指出,只需少量修改,就可将单独翼分析程序扩展为可同时适用于翼-身组合体。本文考虑的组合体其机身为有限或无限长,圆形截面,机翼前后机身轴线允许弯曲;机翼有任意平面形状,但翼尖弦长不能太短。

In this study eight cases of easterly wave were analyzed, two classes of easterly wave identified according to the weather area related to the trough lines position of easterly wave. In the first class bad weather area is situated to the west of trough lines and in the other it is situated to the east of trough lines. This distributions of weather can be explained by the adjustment physical process of thermal wind. It is shown that in the tropical easterly waves, if the easterly is intensified with increasing...

In this study eight cases of easterly wave were analyzed, two classes of easterly wave identified according to the weather area related to the trough lines position of easterly wave. In the first class bad weather area is situated to the west of trough lines and in the other it is situated to the east of trough lines. This distributions of weather can be explained by the adjustment physical process of thermal wind. It is shown that in the tropical easterly waves, if the easterly is intensified with increasing height, in the vertical shear of basic air flow provides easterly, then bad weather area is occurred to the west of the trough lines. If the easterly is decreased with the height, so in the vertical shear of basic air flow is westerly one the bad weather is observed to the east of the trough lines.

本文分析八个东风波实例,按天气区域相对于700hpa东风波的槽线位置分为两类:一类坏天气区域位于槽线以西;另一类坏天气区域位于槽线以东。用热成风适应物理过程来解释这种天气区分布的原因。指出:在热带东风波区域中,若东风随高度增强的地区,基本气流的垂直切为东风,则坏天气区在槽线以西;若东风随高度减弱的地区,基本气流的垂直切变为西风,则坏天气区在槽线以东。

An axisymmetric,nonhydrostatic numerical model is developed to simulate the meso-scale processes inside a tropical cyclone.Sensitivity of the model to the variables in the sea temper-ature,laitude and initial conditions is investigated,and the results of the numerical experimentsare similar to previous studies,besides,many simulated characteristics are consistent with radarand aircraft observation,such as the maximum of vertical and tangential wind ,the inflow concen-trated near the surface,the outward slope...

An axisymmetric,nonhydrostatic numerical model is developed to simulate the meso-scale processes inside a tropical cyclone.Sensitivity of the model to the variables in the sea temper-ature,laitude and initial conditions is investigated,and the results of the numerical experimentsare similar to previous studies,besides,many simulated characteristics are consistent with radarand aircraft observation,such as the maximum of vertical and tangential wind ,the inflow concen-trated near the surface,the outward slope of the eyewall updraft’etc. Also,the results show notonly the outward propagation of the meso rainbelts but the inward movement of the convectivering as well,The rate of theinward movement agrees well with the observation,Besides,the mod-el reveals clearly the lifecycle of the ring and the fluctuation of typhoon intensity.

建立一个非静力的轴对称数值模式,模拟热带气旋内部的中尺度过程。通过对海温、纬度、初始场进行大量敏感性实验,发现模式的模拟结果同以前的研究是一致的。许多模拟特征(如垂直、切向风的最大值;低层入流;眼壁处上升气流的向外倾斜等)同雷达、飞机的观测很类似。模式十分清楚地再现了对流环的生消过程,并且对流环的向内移速与实测值很一致。模拟结果还显示台风内外区结构间存在耦合关系。

 
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