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单词
pole-changer
释义
pole-changer
noun
A switch or key for reversing the direction of an electric current by reversing the polarity of the voltage source.
Origin
Mid 19th century
.
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admire
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admissible
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admissibly
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admit
admittable
admittance
admittatur
admittedly
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更新时间:2025/3/25 22:09:19