" So we want to develop a system to prevent collisions and lower risks by improving driver performance."

“因此，我们希望开发一个改善司机驾驶表现的系统，从而防止车祸，降低风险。”

NASA described the mission as the first test of a planetary defence system to prevent a future asteroid collision with earth.

美国宇航局称此次任务是首次测试行星防御系统，以防止未来小行星与地球相撞。

A safety driver was on board at the time but failed to prevent the collision.

当时车上有一名安全驾驶员，但未能阻止碰撞。

The hope is that this deflection technology could be used in the future to prevent a cataclysmic asteroid collision with Earth.

希望这种偏转技术可以在未来用于防止小行星与地球发生灾难性碰撞。