Commutator

[kɒmjuteitә]

解释:

(noun.) switch for reversing the direction of an electric current.

巴尔德手打--From WordNet

解释:

(n.) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction.

伯特伦编辑

例句:

克莱夫整理

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