The key reason for the improved performance are the pairs of counterrotating swirls created at either side of the leading-edge bumps, called tubercles.
前缘能增进性能的关键理由，是因为在这
节瘤的两侧，
产生成对的
转涡流。
转的 对转的The key reason for the improved performance are the pairs of counterrotating swirls created at either side of the leading-edge bumps, called tubercles.
前缘能增进性能的关键理由，是因为在这节瘤的两侧，产生成对的转涡流。
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