求翻译：有一定弹性的椅垫，包括坐垫与靠垫，适当地增大了与人体的接触面积，可以减少局部体压过于集中，减缓由于行驶振动所造成的不适是什么意思？

Cushions for certain flexibility, including the cushions and cushion, appropriately increase the contact area of the body, reduces the partial pressure of concentration, slowing because of the vibration caused by irritation