单词	commutate
释义	commutate verb com·​mu·​tate ˈkäm-yə-ˌtāt  -yü- commutated; commutating transitive verb : to reverse every other half cycle of (an alternating current) so as to form a direct current Word History Etymology back-formation from commutation First Known Use 1890, in the meaning defined above
随便看	Karaj Karajan Karajá karaka Karakalpak karakalpak autonomous republic karakalpaks Karakalpakstan karakas Karakoram Pass Karakoram Range karakorams Karakorum karakul karakuls lub Luba lubas Lubavitcher lubavitchers lubbards lubber lubber fiend lubber grasshopper lubber line

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