The sensor signal affects the frequency converter in such a way that the draw-off speed of the foil remains constant.

传感器信号以这样一种方式影响变频器，使牵引箔的速度保持不变。

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An aeroplane has to reach a certain speed before there is enough lift to get it off the ground.

飞机得在达到一定的速度以后，才能有足够的提升力从地面起飞。

《柯林斯英汉双解大词典》

But I was eight years old and I was terrified. I think it took me like two months to go off it with the full speed and actually go anywhere,"

VOA: standard.2010.01.31

Collins said he made the decision because Baxter was better at facing an off-speed pitcher like Feldman.

WSJ: New York Mets lose 8-2 to Chicago Cubs

When approached by police officers, he drove off at speed with the woman in the passenger seat.

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The crash happened as the car was driven off at speed after being stopped, said West Yorkshire Police.

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