stirrer with spiral blades

例句：

1. 1.The chef used a large wooden spoon to stir the soup.
   厨师用一只大木勺搅拌汤。
2. 2.The machine is designed to stir the mixture evenly.
   这台机器设计用来均匀搅拌混合物。
3. 3. The scientist stirred the chemicals together with a magnetic stirrer.
   科学家用磁力搅拌器将化学物质混合在一起。