English example sentences with "helicopters"

Ships and helicopters left for the spacemen's rescue.
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News stations use helicopters to report on traffic.
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Medical helicopters take very sick people to hospitals.
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In helicopters, the cyclic controls the tilt of the main rotor, producing pitch and roll.
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In helicopters, yaw is controlled through the pedals, which alter the angle of attack of the tail rotor blades.
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Tom could hear helicopters overhead.
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São Paulo has the second largest fleet of helicopters in the world, behind New York, which has 420 helicopters in the whole of the city.
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We heard the sound of helicopters overhead.
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We could hear helicopters approaching.
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How do helicopters fly?
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Helicopters are noisy.
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Helicopter parents are parents that hover over their children like helicopters.
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But by using fire-fighting helicopters, we have already managed to largely limit fires.
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I hate it when helicopters fly over my house.
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France marked Bastille Day Saturday with its traditional display of military might — a veritable assault of troops, helicopters, fighter planes taking over the skies and the famous Champs Elysees avenue of Paris.
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The Spanish police is using helicopters to spot groups of people gathering outdoors.
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Commandos from the Royal Navy Special Boat Service were lowered from helicopters onto the ship.
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We have a yacht, two helicopters, and a seaplane.
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Military helicopters in northern Pakistan Sunday continued searching for three climbers, including two foreigners, missing in their attempt to conquer the world’s second-tallest peak, K2, known as the “Savage Mountain.”
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Italian firefighters are using helicopters to fight fires along Italy's Adriatic coast and Sicily region.
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Numerous water-dropping planes, nine helicopters, and dozens of water cannon are being used to battle the blaze.
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That’s why we need the fixed-wing aircraft to do airlifts and air drops both in Kenya and Somalia and helicopters in particular to go to areas which are cutoff by the floods and people are marooned.
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New Yorkers appear to have accepted the scream of sirens on the ground and the thump of helicopters overhead as part of daily life.
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We could see several rescue helicopters flying above us.
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Dozens of helicopters were flying through the city.
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Apache helicopters are very expensive.
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Kalman woke up to the sounds of helicopters and dogs barking outside.
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The Stanford mathematician says that single criminal acts are much more difficult to solve using mathematics, since there's no pattern yet to the criminal's behavior. He says one especially useful tool in these cases is image enhancement, which uses sophisticated mathematical techniques. Images taken from surveillance cameras, camera phones, and even helicopters, can be enhanced to show an incredible amount of detail that was not apparent before. "You can enhance that image so not only can you recognize that person, but you can see details like tattoos on people's arms, and scars on their legs," remarks Devlin.

One of our helicopters went down.

We woke up to the loud sound of helicopters.

Fabián and Cristina had already been searching for Mary for two hours in the valley when the helicopters showed up.