It is the rapid deflation of an airbag after it has first inflated that actually absorbs the impact, so its position, size, the moment it is fired and its inflation pressure are all crucial.

• 当气囊一旦膨胀打开并有效地吸收了冲击力之后，就会立刻收缩，因此它的安装位置，大小，点火膨胀的时机以及收缩的压力都是至关重要的。