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alternating current

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alternating current

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++
Related topics: Electricity
ˌalternating ˈcurrent noun [uncountable]  TPE (abbreviation AC) a flow of electricity that changes direction regularly and quickly 交流电 direct current
Examples from the Corpus
alternating currentTesla was told firmly that he must never so much as mention the subject of alternating current.The Westinghouse Company was badly overextended because of the expensive campaign to put the coun-try on a system of alternating current.Unlike Edison, Westinghouse was a convert to alternating current.The design could be improved, he declared, by switching to alternating current.The change of attitude towards alternating current was certainly helped by the Westinghouse exhibit at the Columbian Exposition that year.
and Corpus of regularly changes that a flow electricity direction


alternating current
ˌalternating ˈcurrent noun [uncountable]
(abbreviation AC) a flow of electricity that changes direction regularly and quickly ⇨ direct current


alternating currentBrE /ˌɔːltəneɪtɪŋ ˈkʌrənt/ 🔊NAmE /ˌɔːltərneɪtɪŋ ˈkɜːrənt/ 🔊 noun [uncountable, countable] (abbreviation AC) an electric current that changes its direction at regular intervals many times a second 交流;交流电流   compare direct current