名词中文翻译
中文翻译：封闭式叶轮
同义词：
['closed rotor', 'closed vane', 'closed blade例句：1. The closed impeller is responsible for the efficient operation of the machine.（封闭式叶轮负责机器的高效运转。）']
例句：
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1. The closed impeller is responsible for the efficient operation of the machine.
封闭式叶轮负责机器的高效运转。
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2. The design of the closed impeller has been optimized to improve efficiency.
封闭式叶轮的设计已经优化以提高效率。
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3. The closed impeller is made from high-quality steel and is durable and reliable.
封闭式叶轮由优质钢材制成，耐用且可靠。