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coaxial-line frequency meter

英 [ˈkəʊˈæksɪəl laɪn ˈfriːkwənsi ˈmiːtə(r)] 美 [ˈkoʊˈæksiəl laɪn ˈfriːkwənsi ˈmiːtər]

【电】同轴频率计

电力

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