名词
中文翻译：运行直径
同义词：
['runner length', 'running diameter']
例句：
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1.The turbine's runner diameter is crucial for its efficiency.
涡轮机的运行直径对其效率至关重要。
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2. The new design aims to reduce the runner diameter without compromising on performance.
新设计旨在减少运行直径，同时不牺牲性能。
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3.The runner diameter of the turbine is measured in meters.
涡轮机的运行直径以米为单位测量。