名词中文翻译
中文翻译：叶轮外径
同义词：
['impeller diameter', 'impeller outer diameter']
例句：
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1. The impeller outer diameter is crucial for the efficiency of the pump.
叶轮外径对于泵的效率至关重要。
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2. The manufacturer has increased the impeller outer diameter to improve performance.
制造商已增加叶轮外径以提升性能。
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3.The impeller outer diameter is measured in millimeters and affects the overall size of the machine.
叶轮外径以毫米为单位，影响机器的整体尺寸。