The diagnostic of the sand-dust storm process was analyzed which occured on April,2005, found: medium- and low-altitude troughs falling behind the high trough formed this kind of slanting pressure structure, which would deepen this cold trough.
对2005年4月发生的这次沙尘暴天气过程进行了诊断分析，发现：中、低空温度槽落后于高度槽的这种斜压结构，将使该冷槽加深。
参考来源 - “0504”沙尘暴个例诊断分析研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Of working cold trough: stainless steel cold trough, the double-layer vacuum glass observation window.
工作冷槽：不锈钢冷槽，双层真空玻璃观察窗。
West wind trough provided power and cold - warm air for this strong precipitation, typhoon provided vapors.
西风槽为降强水提供动力及冷暖空气，台风为强降水提供水汽。
Through the analysis, it is shown that the Matsa s extratropical transition and the re-intensification are due to the intrusion of cold air from the upper-level trough into the typhoons circulation.
以一个在陆上长久维持并最终演变成温带气旋的登陆台风“麦莎”为研究对象，通过对其北上变性过程的分析发现，台风与中高纬西风槽的相互作用使得冷空气侵入是其变性加强的原因。
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