The top flap is then flipped back up into place.

然后将贴膜顶部翻转回原来的位置。

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The 'V' cut in the main flap (top arrow) creates a kind of vortex, which energises the airflow under the car's central section.

在主翼片的上方开出了一个“V”型的切口用以产生涡流，为流过赛车中央部分下方的气流增加动力。

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Top flap with a pull release closure.

上拉释放顶瓣关闭。

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The stabiliser is a small horizontal flap on the top of the aircraft's tail.

BBC: Moscow crash jet 'stabiliser jammed'

That extra attention to detail has already begun at the Ferrari factory as the team's engineers solved the problem with Alonso's faulty drag reduction system (DRS) -- an overtaking aid which increases the car's straight-line speed by flipping open the top flap of the rear wing -- the day after the Bahrain Grand Prix.

CNN: Ferrari boss: 'We have to be perfect'