大家在查：禁书 disturb calm 98.6 吴征艾比路着潺弗里敦第1441 夏朝 DESARA

maintain level

maintain level

maintain level

maintain level

1

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。

2

CONTROLLER: "American 11 , Boston Center , roger, climb, maintain level two eight zero. "

美航 11 号航班，这里是波士顿控制中心，收到，继续攀升并维持在 280 区域。

3

This difference in lift can make it hard to maintain level flight .

这种差异能够产生保持直升机水平飞行的升力。

4

The aircraft is lost control now , I can not maintain level flight at present altitude .

飞机现在失去操纵，我在现在的高度上不能保持平飞。

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