Carried by H-5 bomber or Q-5 attacker, the Yu-2 was designed to fly using rocket engine in air at high speed before it hits the water at a very close distance to the surface target.

由轰- 5型轰炸机或强- 5型强击机携带，鱼- 2型设计采用火箭发动机在空中高速飞行，当在非常接近到水面目标的距离时进入水面。

youdao

It can fly at up to 2.5 times the speed of sound and is designed for low-altitude, high-speed, precision attacks.

BBC: News | In Depth | Military Fact Files