其中封闭式叶轮应用很广泛，前述的单吸叶轮双吸叶轮均属于这种形式。
Which closed impeller very broad application, the aforementioned single-suction aspiration impeller double impeller belong to this form.
独特的喷气滑雪船舶功能的全封闭式叶轮泵，大大改进了传统的舷外马达的饮水安全。
The unique JET SKI watercraft feature of the fully enclosed impeller pump dramatically improved water safety over conventional outboard motors.
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