The technique is also similar to that used on aircraft, where flaps regulate the lift and stabilize the load during the most critical times such as at take-off and landing.

这与飞机上应用的技术也很相似，在飞机最易发生事故的危险阶段，如起飞和着陆，飞机襟翼可以有效的调节升降和稳定负荷。

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And even if they used gliding flight, they would need to be exposed to very high wind velocities at take off - such high winds that they would be blown away and have no need for wings.

即便用滑翔，他们也需要利用相当大的风速帮助起飞，而在这样的狂风中他们完全不需要翅膀，直接就被吹走。

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By drilling, geologists can take measurements at various depths.

通过钻孔，地质学家可以在不同深度测量。

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He says part of what makes the science cafe successful is that the conversations take place at a restaurant called Herbie's.

VOA: special.2010.05.14

And, by all means, if you are scheduled to attend class at 11:00, please take the test at 11:00.

当然，如果你安排到11：00参加考试的话，请在11：00参加考试。

麻省理工公开课 - 固态化学导论课程节选

This is your opportunity, if you're sitting at home, you could take off to turn off the TV.

机会来了，如果你正在家里，就可以马上开始了，关上电视。

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Investigators estimated that at take-off that day, the helicopter weighed between 3, 228 pounds and 3, 461 pounds.

WSJ: Pilot Blamed in 2011 Crash of Helicopter

They are most effective when fired at aircraft flying at low altitudes, as at take-off or landing.

ECONOMIST: The shoulder-held threat | The

You can learn more about it at Take Charge Build Wealth.

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