查询词典 cyclone

It is shown from this thesis that flow fields on synoptic maps can be decomposed into rotation and deformation fields. Geostrophic non-frictional cyclone and anticyclone vortex patterns are closed circulations around the center point, streamlines of frictional cyclone and anticyclone patterns have spiral forms around the focus point. Saddle fields have four vortex centers (two cyclones and two anticyclones) and a saddle point. Blocking high pressure and cut-off low pressure patterns consist of a vortex center and a saddle point.

本文说明了天气图上的流场可以分解为旋转场和变形场：地转无摩擦的气旋、反气旋的涡旋型式是围绕中心点的闭合环流；考虑摩擦的气旋、反气旋的流型是围绕焦点的螺旋型式；鞍型场有4个涡旋中心点（2个气旋和2个反气旋）与1个鞍点；阻塞高压和切断低压由1个涡旋中心点与1个鞍点组成。

The results indicated that the effect of deep warm-wet air coming along the behind subtropical high , moving eastward deepening upper trough , shear line and cyclone trough was caused in Zhuanghe , but no strong thunderstorm . The main impact of system is surface cyclone trough ; Low vortex , shear line in 700hPa , 850hPa strengthen the lower convergence , forming a strong momentum of increase and pieces of water vapor ; strong and wide potential pseudo-equivalent temperature frontal zone lied in Zhuanghe area , the establishment of potential instability are indispensable conditions for producing heavy rain .

结果表明：受副热带高压后部深厚的暖湿气流及西风带高空槽、切变线及气旋倒槽等动力系统共同影响，庄河地区出现了大暴雨天气，但没有出现强雷暴，此过程主要影响系统是地面气旋倒槽；700hPa、850hPa低涡、切变线使中低层辐合加强，形成了较强的动力抬升和水汽辐合；庄河地区处于强而宽的假相当位温锋区中，位势不稳定的建立是造成此次强降水的必要条件。

On the basis of this, the role of condensational latent heat release is studied emphatically and a conceptual model of mutual positive feedback mechanism between the growing of meso-α-scale cyclone on MeiYu front and its accompanying intensifying precipitation due to stable condensational heating is posed, i. e. condensational heating generates negative allobar, divergent wind kinetic energy promotes meso-α-scale cyclone growing, and simultaneously, updraft motion is also reinforced, precipitation continues intensifying.

并在此基础上着重对凝结潜热释放的作用进行了研究，提出了一种由稳定性凝结加热作用而导致的梅雨锋上α中尺度气旋发展与降水增强之间相互正反馈机制的概念模型即凝结加热可以产生负变压，变压风动能通过转变为旋转风动能促进中气旋发展，同时上升运动得到增强，降水增幅。

For the optimization of the structure parameters and operation ones of the cylindrical three-phase cyclone with a vaned inlet and a direct-current outlet which is used for separating the mixtures of solid and liquid particles from gas flow, gas fluid field in three-phase cyclone was measured by five-hole pressure probe under two fluxes.

为了对用于液固混合物与气相分离的直筒型导叶直流式三相旋流器进行结构参数和操作参数的优化，使用五孔球探针对直筒型导叶直流式三相旋流器的气相流场在两个流量下进行了实验测定。

So the two methods have been chosen to detect and estimate the center of a tropical cyclone over China offshore.They are the Geometric Axisymmetric Center Positioning Method and the Velocity Distance Azimuth Display Positioning Method,respectively.The former decides the position of a tropical cyclone center using directly the Doppler radar radial velocity field,the latter does the position using the productV_(r×D of the Doppler radar radial velocity valueV_(r and the distance from observation site to radar center.

两种客观方法分别为几何轴对称中心定位法和速度距离方位显示中心定位法，前者直接应用多普勒径向速度场进行定位估计，后者则应用观测的多普勒径向速度场与观测点至雷达中心距离的乘积来估计台风中心位置。

The change in the tropical cyclone intensity as it passes the area near to Shanghai is remarkable. In general, the minimum surface level pressure of tropical cyclone center near to Shanghai is greater than 920 hPa.

上海及其近海区域台风强度随纬度增加而减弱的变化特徵明显，在东海北部，近50 a内尚未出现过中心气压低920 hPa的台风。

The real tangential velocity fluctuation indicated that there existed an instability of swirling flow in the cyclone.This instability resulted in the rotation center of the swirling flow deviating from the geometric center of the cyclone,which produced the quasi-periodic oscillation of swirling flow and gave the real tangential velocity fluctuation.

瞬时切向速度的变化反映了旋风分离器内旋转流的不稳定性，这种不稳定性导致了旋风分离器内旋转流的旋转中心与几何中心不重合，旋转中心围绕着几何中心摆动，由此造成了瞬时切向速度随时间的类周期的波动变化。

Design of the structural of the cyclone collector with double outlet for dust is based on the traditional cyclone collector.

双出风口分离器的结构设计主要是在单出风口分离器的基础上改进而来。

The structure, flow field distribution and the dust separating procedures of inner speeding vortex cyclone collector are very different from that of traditional cyclone dust collectors.

混流区和中心旋流区是内旋流加速旋风集尘器的主要特征之一。

The structures and the critical dimensions of a normal cyclone separator are improved, and a new type of cyclone PV-E is developed.

对影响PV型旋风分离器分离性能的关键尺寸和结构进行了改进，开发出了一种压降更低、效率更高的PV-E型旋风分离器。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。