向内流的

The effects of different parameters and cross-sections on axial velocity, the distribution of secondary flow, temperature field, turbulent kinetic energy, wall friction coefficient and wall Nusselt number are analyzed in detail.

详细分析了充分发展的和发展段的湍流管道内，不同截面形状和几何参数对轴向速度分布，截面二次流结构，湍动能，曲线管道摩擦比，温度分布和曲线管道Nusselt系数比等管道流动和传热特性的影响。

The general model, including axial dispersion flow for the bulk fluid phase, diffusion equation described by Fick law for the particle phase and the equilibrium concentration given by a modified competitive Langmuir isotherm, was presented and discretized with Galerkin and orthogonal collocation into a series of ordinary differential equations.

为考察孔内扩散对模拟移动床分离过程的作用，采用综合速率模型对其进行研究，其中流动相模型为轴向扩散活塞流，颗粒相为Fick定律描述的扩散方程，液相和固相之间的吸附平衡采用改进的Langmuir吸附等温线。

Based on the analysis of Sea Surface Height Anomaly from satellite observation, it is proved that the oscillation with period of 70～210 days is dominating in two branches of the eastward countercurrent in Subtropical North Pacific: Subtropical Countercurrent and Hawaiian Lee Countercurrent.

根据对卫星观测的海平面高度资料的分析，进一步证实了在北太平洋副热带两支向东的流（副热带逆流和夏威夷背风逆流）所在的区域内，海平面高度的70～210天周期振荡是主要的低频变化。

Effects of Coriolis force were analyzed with the three dimensional simulations and the following conclusions were drawn: The tangential component of Coriolis force induces cross stream secondary flow in the form of two-cell pattern,while the radial component of Coriolis force decelerates and accelerates the cent...

计算结果表明，切向哥氏力推动了通道截面内的双涡二次流，径向哥氏力则使得近侧壁流体加速和中心流体减速。换热计算结果从定性趋势上吻合公开文献中的实验现象，反映了旋转附加力的基本影响规律。

The flow motions, including vortical, upward, and downward movements, inside the cyclone separator are very complicated and the behaviors of the air stream are difficult to observe by means of experimental methods.

旋风分离机内的流场是非常地复杂，气流有旋转、向上、向下等各种不同方式的运动，以实验的方法，很困难充分了解其气流的运动情形。

The results of this study showed that the influencing factors of slope instability for the Luchang Area include rock fall at the west slopes, thick colluvium, sliding planes for dip-direction slopes, headward and sideward erosion of channel, as well as fast seepage of ground water. Two slide planes were recognized from geological profile model. One is potential slide plane on the dip-directional slope, another plane is located in the colluvium near Luchang river sides.

本研究结果显示，鹿场地区地质环境之不安定原因，有西侧岩壁落石、厚崩积土体、顺向坡平面滑动、河道的向源侵蚀和侧蚀、地下水渗流快速等；就所建构地质模型可以了解，鹿场地区可能的滑动面有两部份，一为潜在的顺向坡平面滑动面，另一为在鹿场溪河岸崩积层边坡内的滑动面。

To compare the growth characteristics of non-hematopoietic adult stem cells derived from rat fetal blood and rat bone marrow in vitro, and to study the differentiation of these stem cells into neuron-like cells in vitro,the fetal blood of pregnant rats and bone marrow of adult rats were sterilely collected; mononuclear cells were isolated by using standard Ficoll-hypague techniques and then cultured in DMEM/LG containing 10% fetal bovine serum.

为了比较大鼠胎血和骨髓中非造血成体干细胞（non-hematopoietic adult stem cells，NASC）体外培养过程中的生长特性及体外诱导两者向神经元样细胞分化的异同，在无菌条件下采集孕大鼠的胎血和成年大鼠的骨髓，用Ficoll-hypague分离液分离出单个核细胞后，种植于含10%胎牛血清的DMEM/LG培养液内。收获的NASC传代培养，用流式细胞仪检测细胞的免疫表型。

It is shown that the ADFVLN, which has lower losses, high off-design performance and reliability, is superior to the vaned nozzle as the first stage and it also has more advantages than the early AFVLN, such as lower losses and less skewed boundary layer near the inner ring ect..

研究表明，这一新型轴流无叶喷嘴不仅具有原来同类喷嘴的优良性能，而且双出口结构和内环旋转的特点，使其流动效率明显提高，并省去两块隔板，缩短了机组的轴向尺寸，具有较高的工业应用价值。

In this thesis, the phase distribution mechanism in vertical bubbly flows was analyzed and the constitutive relations for lateral two-phase interactions, including lift force and wall force, were determined.

本文首先对影响两相分布规律的相间作用力进行了研究、分析和总结，给出了垂直管道内泡状流中气泡的侧向提升力和壁面排斥力表达式。

The flowfield numerical simulation of the axisymmetric jet emanating fromthe organ-pipe nozzle is made with the turbulence κ—ε two equations model, providing the basis for improving its cleaning ability.

采用湍流κ-ε二方程模型对风琴管式喷嘴内外流场进行数值模拟，弄清其流场的流动特性（轴向速度、径向速度的分布规律和衰减规律），为提高清除岩屑效率提供依据。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐