rotary dump room

例句：

1. 1. The rotary valve is used to control the flow of oil in a machine.
   旋转阀用于控制机器中油的流动。
2. 2. The rotary saw is an essential tool for cutting curves and intricate shapes.
   旋转锯是切割曲线和复杂形状的必备工具。
3. 3. The rotary drill is used to bore holes in materials such as wood or metal.
   旋转钻机用于在木材或金属等材料中钻孔。