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FACTS can control the parameter and structure of the AC power system flexibly and fleetly, then the system stability and reliably can be improved greatly, Unified Power Flow Controller colligates the control function of many FACTS element, and has been considered as the most creative and powerful element in FACTS.

FACTS能实现对交流输电系统参数以至网络结构的灵活快速控制，从而大幅度提高系统稳定性、可靠性，其中，UPFC综合了许多FACTS器件的灵活控制手段，被认为是最有创造性的，是功能强大的FACTS元件。

The overall trend was that, wildwoods disappeared fleetly, planted economic woods manifolded, farmland and wasteland expanded and stretched inland, bioenvironmental problem began to emerge.

总的趋势是：原始森林的迅速的消失，人工经济林增多，栽培作物和荒地面积的扩大，并且日益向内地发展，生态环境恶化的现象渐渐增加。

The figure of this playing card is irregularly and has an arc-shaped place which can help you putting every playing card in position fleetly.

此款扑克的特点为扑克的形状为不规则的形状，扑克的两个短边是一个弧形的手指位。

The control of the whole test-bed is completed by a Programmable Logic Controller. The place of seeds are tracked by the sensor, it can obtain position of any seeds fleetly and exactly. The open or close of high-pressure airflow is controlled by the magnetic valve, which blow the seeds into the container according its grade information .The software for the communication from PC to PLC was compiled , which was based on Visual C++, it was proved to be effective and friendly to operation .

本研究选择可编程控制器PLC来实现对整个试验台的控制，由色标传感器对种子位置进行实时跟踪，快速、准确地获得运动中每一粒种子的位置信息，通过电磁阀控制高压气流的通断，将种子按其级别信息吹入相应的容器里，研究还包括PC机与可编程控制器PLC之间的通讯功能的实现。

In order to describe the lip contours in a lip reading system automatically and fleetly,orthogonal compression transformation was applied to the feature extraction of lip contours.

为了能够自动而且快速地获取唇读系统中所必需的唇形轮廓特征，提出了将正交压缩变换的方法用于唇形轮廓的特征提取，并对得到的唇形轮廓曲线进行了分析研究。

A series of erosion-corrosion test has been done to J55 steel under the influence of current of gas-liquid phase by indoor self-made devices, and the corrosion mechanism of current of gas-liquid phase to oil pipe's inner surface has been got. The results show that oil pipe's inner surface will be corroded fleetly by liquid medium and corrosion products will form on it. But at the same time, the corrosion products or protective layer will be removed from the inner surface of steel pipes under the alternate impact of high speed gas and liquid flow, and on this bare steel surface corrosion film will form again and be removed again. Thus, by these ways the corrosion is exacerbated. Surface erosion-corrosion failure comes into being with the circulation of this process going on.

本文主要在气液两相流作用条件下，通过室内自制装置，对管材钢J55做了系列冲刷-腐蚀试验，结果表明，气液两相流对钢管内表面冲刷－腐蚀的机理是钢管内表面会受到液体介质的快速腐蚀，生成腐蚀产物，同时钢管金属表面不断被具有高流速的气液相交替地冲击，不断地从金属表面脱去保护膜或腐蚀产物，裸露的钢表面又会被介质快速腐蚀形成腐蚀膜后，再被两相流冲掉，如此反复，造成管内金属表面膜的连续破坏，使腐蚀加剧，最终导致钢铁表面的冲刷腐蚀失效。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。