单词	ferrocolumbium
释义	ferrocolumbium noun fer·​ro·​columbium ¦fe(ˌ)rō+ : a crude alloy of iron and niobium used chiefly to add niobium to steel Word History Etymology New Latin, from ferro- + columbium
随便看	FR and CC Fra fra fra ae fra diavolo frabjous frabjously frac fraca fracas fracases frack fracking fractal fractals fracted fracti fracting fraction fractional fractional burial fractional currency fractional equation fractional lot fractional note

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