There was a helicopter hovering overhead.

有一架直升飞机在头顶上盘旋。

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Aiming at the current status that helicopter uses single torpedo to attack submarine, a method of two torpedoes salvo for helicopter hovering attack is presented.

针对直升机投雷一般采用单雷射击的现状，提出了采用直升机悬停双雷齐射的方法。

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Beneath the hovering helicopter, an ugly mud-orange clearing has been cut for it from the lush green forest.

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As much as I love helicopters, I declined for several reasons, including that it's hard to conduct an interview in a helicopter, and because hovering in midair feels unnatural to me and brings on intimations of mortality.

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In 1939, although experiments with hovering aircraft had been going on since 1900, the first successful helicopter, Igor Sikorsky's VS-300, made its first flight.

CNN: Monday,