The faster a helicopter goes, the greater the difference and the more difficult it is to maintain level flight.

而直升机飞得越快，这种差异就越显著，也就越难于维持水平飞行。

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ALTITUDE ACQUIRE, a digital flight control system mode to transition from climb (or descend) to level flight.

高度截获，一种数字式飞行操纵系统，从爬升(或下降)改平的模式。

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Although this has been a top level flight over the data types, hopefully it will give you enough to understand the basic types and operations.

尽管这里只简要介绍了数据类型，但是我们希望让您对基本数据类型和操作有足够的了解。

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It happened so early in the flight, at a level of about 900 meters, that the crew had little time to decide what to do.

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The air pressure in a plane during flight is lower than at sea level.

VOA: special.2009.07.14

In front of me, on a left-to-right eye-level flight, is a chukar partridge.

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From this level, a flight of stairs leads to the first viewing gallery on floor 69.

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Ms. Heroux, 51 years old and a veteran controller, confirmed she could clear that flight level.

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