【電】 noiseless recording

無的英語翻譯：

naught; nonexistence; not; nothing; without; lack; zero
【醫(yī)】 a-; leipo-; lipo-; non-

雜音的英語翻譯：

cacophony; noise; souffle
【化】 unpitched sound
【醫(yī)】 murmur; souffle; susurration; susurrus

記錄的英語翻譯：

record; mark; register; account; memorize; report; take notes
【計】 design development record; posting; REC; record
【醫(yī)】 protocol; reading; register; registration
【經(jīng)】 entry; keeping of record; mark; record; record keeping; records