slotted aerofoil

例句：

1. 1.The car has a slotted wheel hub.
   这辆车有一个带槽的轮毂。
2. 2.The machine is slotted into the wall.
   这台机器被嵌入墙中。
3. 3. The new model has a slotted design.
   新款设计带有槽口。