impeller with two side discs

例句：

1. 1. The impeller is responsible for mixingthe ingredients in the food processor.
   搅拌器负责在食品加工机中混合食材。
2. 2.The impeller is designed to rotate athigh speeds to create a powerful force.
   叶轮被设计成高速旋转，以产生强大的力量。
3. 3. The impeller is madeof stainless steel and has a smooth surfaceto prevent food from sticking.
   叶轮由不锈钢制成，表面光滑以防止食物粘附。