名词中文翻译
中文翻译：换向器壳
同义词：
['transformer shell', 'commutator housing', 'commutator case']
例句：
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1. The engineers were working on the design of a new commutator shell.
工程师们正在设计一个新的换向器壳。
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2. The commutator shell is crucial for the proper operation of the motor.
换向器壳对于电机的正确运行至关重要。
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3. The commutator shell was replaced after several years of use due to wear and tear.
由于磨损，几年后更换了换向器壳。