这才是保险作为突发事件缓冲的作用。

That's what your emergency cushion is for.

youdao

酸所造成的破坏要弱于碱性物质，因为许多角膜蛋白质可结合酸并起到化学缓冲的作用。

Acids tend to cause less damage than alkalis as many corneal proteins bind acid and act as a chemical buffer.

youdao

主要功能：当婴幼儿头部受到碰撞时，可起到减震、缓冲的作用，避免或减轻对其头部的伤害。

Main function: With the function of damping and cushioning, it can avoid or mitigate damage to the head when the head of infant is collided.

youdao