The key reason for the improved performance are the pairs of counterrotating swirls created at either side of the leading-edge bumps, called tubercles.
隆起前缘
增进
键理由，是因为在这些隆起节瘤两侧，
产生成对反向旋转涡流。
向对转The key reason for the improved performance are the pairs of counterrotating swirls created at either side of the leading-edge bumps, called tubercles.
隆起前缘增进键理由，是因为在这些隆起节瘤两侧，产生成对反向旋转涡流。
声明：以上例
、词
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