Stratus. These low-lying clouds "can give you a strangely claustrophobic feeling." When a stratus cloud forms at a very low level, it is called fog or mist.

层云。这种低垂的云彩“会让你产生一种奇特的幽闭感。”当层云在很低的水平面形成时，它通常被称作雾气。

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Simulation results show that targets can be found more easily in cumulus or stratus than in undulance cloud, because undulance cloud is more abrupt change in its intensity.

结果显示，在积状云和层状云背景中的目标识别较容易，在波状云中的目标识别较难。

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By comparing model simulation with an observed precipitation formed by stratus cloud system, the new scheme shows the improvement of prediction precipitation.

利用新方案模拟了一次层状云降水过程，新旧方案降水模拟结果的对比表明新方案的降水预报效果有所改进。

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