船在水中行驶时会受到水的阻力,使船驶不快。于是,科学家发明了一种新型的船舶,它和一般的船不一样,是“浮”在水面上行驶的。因为船体浮出水面,水的阻力减小,所以船速大大加快,这种船就叫“气垫船”。 When the boat is driving in the water, it will suffer water resistance and make the boat unpleasant. As a result, scientists invented a new type of vessel that, unlike the average boat, was “floated” on the surface of the water. Because the hull surfaced, water resistance decreases, so greatly accelerate the speed of the boat, this boat is called “hovercraft.”