英语词汇“principal value”的读音、翻译、释义、用法及例句-初旭网

词汇	principal value
释义	principal value ‘数’主值
随便看	direct mail direct method directness Directoire director directorate director general directorial director's chair directorship Directory directory direct primary direct product direct proportion direct reaction directress directrice directrix direct sum direct tax direct vision prism direct vision spectroscope direful direttissima

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