在交通事故中，生还或死亡将在几毫秒之内决定，这就是气囊为什么一定要打开得很快的原因。为此，奔驰公司的工程师们发明了PreSafe安全系统。该系统的传感器可以在发生碰撞之前探测到将要出现的碰撞，然后系统中的电脑会立刻将乘客的座椅和方向盘前移、预拉紧安全带、打开气囊 In a traffic accident, the survivorship or death will be decided in milliseconds, which is why the airbag must be opened quickly. To this end, Mercedes-Benz engineers invented the PreSafe safety system. The system’s sensors detect a collision that will occur before a collision occurs, and then the computer in the system immediately moves the passenger’s seat and steering wheel forward, pre-tensioning the seat belt, opening the airbag