pneumatic weighting

例句：

1. 1. The car's pneumatic tires are designedto provide better traction on wet roads.
   这款车的气胎设计用于在湿滑路面上提供更好的抓地力。
2. 2. The aircraft uses pneumaticbrakes to slow down quickly in anemergency.
   这架飞机使用气动刹车来紧急情况下迅速减速。
3. 3. The pneumatic tire is made from a combination ofrubber and air, which provides excellent cushioning and durability.
   这种充气轮胎由橡胶和空气混合制成，提供了极好的缓冲性和耐用性。