Moist air forced to flow upward around mountain tops can create lenticular clouds.

这些透镜状云是山顶周围上升的潮湿空气形成的。

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The milk particle thus sprayed are evaporated into milk powder by heated air forced into the chamber.

把已经喷雾过的奶颗粒，通过压进干燥室的热空气干燥成奶粉。 收藏。

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As a result of it, the wake of air forced backwards by one segment of the snake's undulating body may provide extra lift to the segment behind in the sidewinding glide.

这样，摆动树蛇的身体的前半部分擦过的空气尾流可对侧风滑行的后半部分起到提升的作用。

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An allergic reaction to pollen in the air forced the 22-year-old player to retire from a game at the Serbain Open on Friday.

CNN: Federer knocked out of Estoril Open

Earlier this year, however, a mid-air accident forced him to take to his blog.

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In a warm front, a mass of relatively warm air pushes against a block of cooler air and is forced to flow up over it.

BBC: Turbulence ahead: Flight heads into storm's heart