名词
中文翻译：起始涡旋
同义词：
['initial vortex', 'initial swirl']
例句：
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1.The starting vortex of the storm is moving towards the coast.
风暴的初始涡旋正朝海岸移动。
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2. The researchers found that the initial vortex was responsible for the sudden drop in temperature.
研究人员发现，初始涡旋是导致温度突然下降的原因。
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3.In the early stages of the storm, the starting vortex was invisible to the naked eye.
在风暴初期，初始涡旋肉眼不可见。