名词
中文翻译：换向器振荡
同义词：
['rotational ripple', 'commutator oscillation']
例句：
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1.The commutator ripple in the motor's armature caused a significant reduction in efficiency.
电机电枢中的换向器振荡导致效率显著降低。
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2.During the design phase, engineers had to carefully consider the impact of commutator ripple on the machine's performance.
在设计阶段，工程师必须仔细考虑换向器振荡对机器性能的影响。
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3.The commutator ripple was detected during testing and led to further investigation into the cause of the issue.
测试中发现换向器振荡，并进一步调查了问题的原因。