查询词典 tributary channel

On the delta during Yellow River in zero,there developed a great number of slump structures,which might be formed near the edge of point bar and channel bar or in the channel developed whithin the point bar or channel bar,as well as in the river course.

黄河断流后三角洲上的滑塌构造非常发育，在分流河道中几乎随处可见，它们主要发育在边滩、心滩外缘、周缘或内部的水道中，还可以发育在河床上。

Get the limitation of geography and economic atmosphere, the net swims the difficulty of hypostatic sale channel that operation business establishs independence in the country is greater, and besides Internet bar channel, similar mobile phone, phone depend on sexual channel has development latent capacity more.

受到地理以及经济状况的限制，网游运营商在农村建立独立的实体销售渠道难度较大，而除了网吧渠道以外，类似手机、电话等依附性渠道更具发展潜力。

Main rails 20 x 40 mm hot rolled channel with substantial plate and channel drag boxes for the "Railroad Warehouse" couplers,, and one channel frame stretcher.

主要钢轨20 × 40毫米热轧通道，有大量板和&铁路仓库&耦合通道拖箱，，和一个通道帧担架。

Based on the analysis of physics course of heat transfer, the mathematical model of single-phase flow in the rectangular narrow channel is proposed. And the boundary conditions are given to get the unique numerical result. The finite volume method is used to found the discrete scheme of equations. According to the flow of SIMPLER arithmetic, the computing program is developed and the correctness of program is validated.Then the program is used to solve the problem of flow and heat transfer in rectangular narrow channel.The stable two dimension velocity and temperature fields in rectangular narrow channel and plate fuel are obtained.

在明确窄缝流道及燃料板换热物理过程的基础上，建立了描述矩形窄缝内单相流动与换热问题的数学模型，并给出了合理的边值条件；然后利用有限容积法对方程进行离散，根据SIMPLER算法的流程编制了模型求解程序；在验证程序正确性的基础上，对矩形窄缝流动与换热问题进行了求解，得到了矩形窄缝流道和板状燃料元件内部温度场、速度场的二维分布。

The Olympic Games are Cross-channel broadcast, once one of the channel's signal had a problem and immediately got another channel to the top of the show.

奥运会是跨频道播出的，一旦其中一个频道的信号出现了问题，立刻会有另外频道的节目顶上去。

The best combination of anode and cathode flow channel flow was anode flow channel cross-finger, the flow field composed of the cathode flow channel cross-refers was the best combination of flow field.

阳极流道与阴极流道的最佳组合为阳极交指流道、阴极交指流道组成的流场为最佳组合流场。

The simulation results of the cylinder-block model were given in the article, consistent with that of Middlemen"s. It was shown that the block part could improve the uniformity of the flow distribution. The analysis of the flow field of some materials with different power-law factor in the die designed by Mckelvey was close to that of Mckelvey"s. It was shown that the flow distribution was uniform in the die that can producesheets with 1200mm in width. During the analysis the flow channel was divided into several parts to get the details about the fluid flow in each area. A conclusion was drawn after analyzing the influence of the die pressure on the flow distribution, that the higher pressure is good for the output and bad for the uniformity of the distribution. Simulation of the die applying the cylindrical main runner showed the fact that when the cylinder replaced the cone the change of uniformity was trivial. The uniformity of the non-block flow channel was so poor that the block in the proper position of the die channel was necessary. The project of the die for the wider sheet was put forth, and the analysis of the fluid flow in the die was shown.

本文模拟了圆柱管缝隙流模型的三维流动场，得到了与Middlemen结论一致的流动均匀性，并通过模拟直观地展示了采用阻尼块可以改善挤出均匀性的现象；分析了多种幂率指数的流体在Mckelvey等人设计的流道模型中的流动分布，得到了与Mckelvey的分析结果接近的压力降和流量偏差；本文建立了1200mm幅宽机头流道的三维有限元模型，并逐个分析各个区域和多个截面的流动分布状况，由此揭示了1200mm幅宽L-型机头流道内的流北京化工大学硕士学位论文动分布基本均匀，并在分析了机头压力对于挤出流动分布的影响后得出结论：较高的机头压力可以获得较大的产量，但是不利于物料均匀分布；模拟了采用圆柱管主流道时机头流道内的流动分布，得出结论：主流道由圆锥管改为圆柱管时对流动均匀性影响不大，通过设置适当的阻尼仍然可以达到挤出平衡；模拟了两端进料式圆柱管无阻尼流道的流动均匀性后得到结论：两端进料式无阻尼结构的流动均匀性较差，宽机头中仍然有必要设置阻尼块；确定宽幅机头流道的基本方案，并设计了一种宽幅防水卷材挤出机头流道的结构，通过流动模拟表明该种结构的流动均匀性较好；考察了宽幅机头对于不同厚度片材的挤出适应性，得到结论：当生产不同厚度的片材时，阻尼块高度需要调整。

The effects of DMSG structure on channel electrostatic potential and channel potential is taken into account, and the relation between the length of control gate and the short channel effects is analyzed.

模型考虑了异质围栅结构对沟道表面势和沟道势垒高度的影响，分析了控制栅长度与器件短沟道效应之间的关系。

Bath application of chloride channel blocke(rNPPB30μmol/L)and potassium channel blockers(TEA10mmol/L and 4-AP10mmol/L) could almost completely block the outward current, only remaining 2.1±0.2%.Bath application of Ca2+-free Ringer's solution and potassium channel blockers(TEA10mmol/L and 4-AP10mmol/L) could almost completely block the outward current, only remaining 3.2±0.3%.

用氯离子通道拮抗剂NPPB(30μmol/L)与钾离子通道拮抗剂(TEA10mmol/L和4-AP10mmol/L)协同作用时，该电流也可被基本抑制，只剩2.1±0.2%；(3)用无钙Ringer氏液与钾离子通道拮抗剂(TEA10mmol/L和4-AP10mmol/L)协同作用时，可将此电流基本抑制，仅剩3.2±0.3%。

Multiple-paths hydrogen abstraction reactions of fluorine -with CH_3OH have been investigated at the MP2/6-311 ++ g level. The potential energy surfaces for H-abstraction reaction from carbon atom and oxygen atom were given respectively. The results indicate that there is only one minimum energy path for hydrogen abstraction from carbon atom, while multiple paths were found for hydrogen abstraction from oxygen atom. All the stationary structures, frequencies as well as PES sketch of all channels were given, in which the dominant channel is by a five-member ring transition state. The calculated heat of reaction is 170.62 kj/mol for channel 1, 119.41 kJ/ mol for branch channel 6. The results are in good agreement with experimental data.

以MP2/6-311 ++g水平上详细研究了氟原子与甲醇抽氢反应的多通道反应机理，得到了各条通道中涉及的驻点的构型和振动频率及其能量，给出了两张完整的反应势能面，结果表明，氟原子从C原子上抽氢时有一条明显的最低能量通道，而从氧原子上抽氢时要涉及多条分支通道和多个驻点构型，给出了各分支通道势能面示意图，结果表明以形成五元环状过渡态通道为优势通道，计算得到经途径1生成CH_2OH时反应放热170.62kJ/mol，经分支途径6生成CH_3O自由基时反应放热119.4 kJ/mol，此结果与实验值一致。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。