distributor-spreader

例句：

1. 1. The distributor distributes the materials evenly across the floor.
   分配器将材料均匀地分布在地板上。
2. 2. The spreader spreads the oil evenly on the surface of the pan.
   散布器将油均匀地涂抹在平底锅的表面。
3. 3. The distributor-spreader is responsible for ensuring that all parts are properly installed and functioning.
   分配器-散布器负责确保所有部件都正确安装并正常运行。