对流区 对流区域
Convective area
以上为机器翻译结果，长、整句建议使用 人工翻译 。
区表示该区域对流云出现频数超过30%。
Areas (shaded) illustrate the regions where convective cloud frequency exceeds 30%.
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绝大多数闪电发生在对流区，有少数闪电出现在层云区域。
Most lightning flashes occur near the strong convective region, and a few flashes occur in the stratiform region of the squall line.
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