英语词汇“principal tone”的读音、翻译、释义、用法及例句-开邑网

词汇	principal tone
释义	principal toneprincipal tonen.1.■主音
随便看	fluid end fluid end of pump fluid-energy mill fluid energy mill fluid erosion fluid exposure fluidextract fluid extract fluid exudation fluid fertilizer fluid-filled working chamber fluid film fluid film bearing fluid-film bearing fluid film lubrication fluid filter fluid flow fluid-flow analogy fluid flow angle fluid flow indicator fluid flowmeter fluid flow passage fluid flow pattern fluid-flow pump fluid flow regulator

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