So I pulled over and got out of the car expecting to hear a very loud engine running because the craft was hovering and it takes a lot of power to hover an aircraft.

所以，我拉过去，拿到了期待听到非常响亮的发动机运行，因为工艺徘徊，它需要大量的电力盘旋飞机汽车。

youdao

The second thing is about the power needed to make this vehicle hover.

第二点是使飞行器悬停所需的动力。

youdao

The firm has just successfully completed tests on a 30 kW prototype to see if its control system lets it launch, hover, generate power and land without human intervention.

BBC: Google acquires kite-power generator

Sixty-five horses power the supercharged fans that put the hover in the hover-cart.

FORBES: Just Like Bubba Watson, You Too Can Own A Hover Golf Cart