The principal findings are: It is important to the mesoscale systems that a column of cyclonic vorticity is gener-ated and developed within an unstable and warm air with moist, while a persistently in-tensive ascending motion is maintained with whole vorticity column.

The results showed that in this "cyclonic dust storm" process the cyclonic cold front was the direct and important portion of cyclone system inducing the dust storm.

结果表明在本次锋面气旋型沙尘暴过程中，气旋冷锋是引发强沙尘暴的主要系统，冷锋过境对沙尘暴的触发作用远强于气旋发展。

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The areal distribution of the cyclonic circulation with height of the experimental storms has also been measured, also agreeing quite well with the observed ones.

还测量了各层气旋性环流所占面积随高度的分布，与实况也相似。

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There is a cyclonic circulation in the northern part of the SCS, and its strength and scope decrease with the depth increases.

在南海北部存在一个气旋性环流，这个环流的强度和范围随深度增加而减小。

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There is a cold centre in this cyclonic circulation, and its position moves slightly the south with the depth increases.

该环流的冷中心位置随深度增加稍向南移。

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The northern SCS is dominated mainly by a cyclonic circulation system.

南海北部环流系统主要受气旋环流所支配。

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There is basically a large cyclonic circulation system in the middle north area.

中北部海区（北纬12度以北）基本上为&气旋式大环流系统；

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The superadiabatic state is frequently appears over the plateau, it would be favorable to the development of the cyclonic circulation.

高原上经常出现超干绝热现象，这将使得高原上的气旋性环流加强幅度比其他情况下更大；

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The strongest cyclonic circulation and vorticity are at about 700 mb.

气旋性环流和气旋性涡度在对流层中层的700毫巴附近最强。

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Results show as follows. The heavy rain taking place in the west side of Dabie Mountain is caused by β-scale cyclone on α-scale shear, and the heavy rain near the boundary area between Hunan and Hubei provinces is caused by cyclonic wind perturbation.

结果表明：（1）大别山西侧的暴雨由中α尺度切变线上中β尺度低涡造成，湘鄂交界地带的暴雨由切变线上气旋性扰动造成。

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It is shown that the inner and outer regions of Tropical Cyclone have different governing equations. The inner region is governed by the cyclonic wind and an evolution equation, the outer region is governed by the gradient wind and another evolution equation.

研究表明，热带气旋内区和外区有不同的控制方程，内区受旋转风和一个演化方程制约，而外区受梯度风和另一个演化方程制约。

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The reasons are as follows: the evolution of the northern cyclonic circulation system of the SCS mainly attributes to the existence and southbound extension of the cyclonic wind stress curl in the northwest of the SCS.

原因如下：南海北部气旋型环流系统的演变主要归于南海西北部气旋风应力涡度的存在和南扩。

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Analysis of the thunderstorm formation on a Mei-yu Front cyclonic wave

一次梅雨锋气旋波雷暴天气生成的剖析

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Dedusting function and design calculation of vertical cyclonic water film collector

立式旋风水膜除尘器的除尘性能与设计计算

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Characteristic of Analogous Cyclonic Collector and Its Application

相似旋风除尘器的特性及其应用

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The conditions of optimal heat transfer of the cyclonic current tubes are obtained on the basis of the cold experiment of cyclonic current tubes for film deoxidizer and the analysis of the test result.

根据膜式除氧器旋流管的冷态试验及对试验结果的分析，得出了旋流管处于最佳传热工况的条件。

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Cold Model Experiment and Heat Transfer Research of Cyclonic Current Tubes for Film Deoxidizer

膜式除氧器旋流管的冷态模型试验与传热研究

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The mid-scale shear, strong frontal zone, Mongolia cyclone and surface cold front were main influence systems of forming sand and dust storm.

中尺度切变线、强锋区、蒙古气旋和地面冷锋是引发沙尘暴的主要影响系统；

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The results show that the frontal cyclone deepens rapidly by interaction with large-scale environment after occurring over ocean with weak hydrostatic stability;

气旋在弱静力稳定度的海洋表面启动发展之后，气旋与大尺度环境场相互作用，气旋得到迅速发展。

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Tropical cyclone, frontal cyclone, cold high and southwest monsoon are the main synoptic systems affecting China Sea. When one of them controls the sea, the wave field on the sea has its own features due to the special wind field of this system.

影响中国近海的主要天气系统有热带气旋、锋面气旋、冷高压和西南季风，它们的风场结构很不相同，由此引起的海浪场也各具特点。

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Finally, if the initial disturbance is located at the high-level, a situation like a cut-off low rather than a frontal cyclone will develop.

如果初始扰动位于对流层高层，则地面形成的气旋在结构上和切断低压类似，不像锋面气旋。

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