swirls

swirls of colour.

混杂的颜色。

swirls of dust swept across the floor.

灰尘打着旋吹过地面。

The key reason for the improved performance are the pairs of counterrotating swirls created at either side of the leading-edge bumps, called tubercles.

隆起前缘能增进性能的关键理由，是因为在这些隆起瘤的两侧，会产生成对的反向旋转涡流。

Combine Ube taro powder with 1/3 of the batter and return this taro batter to the plain batter.Then, with the end of a wooden spoon, gently draw swirls through the batter to marbleize it.

取1/3拌好的蛋糕糊和紫芋粉拌匀，然后再将其加入蛋糕糊中，用橡皮划两三下即成。