water air-ejector

• 射水抽气器

water air-ejector的用法和样例：

例句

1. If they can pump all this water out,they can save the ship from sinking.
   如果他们能把水抽出来，船就不会下沉。
2. These treads help your tires pump water out from underneath the tire so that the rubber can be in contact with the road, thus creating the friction that will stabilize your car.
   这些胎纹会帮助你的轮胎把水抽到轮胎下面这样就可以使轮胎橡胶与路面直接接触，因此而产生的磨擦力使你的汽车运行平稳。