誘ゆう導どうコイルゆうどうコイルじ字FuriganaMeanings1nouninduction coilA device that produces high-voltage pulses from a low-voltage DC source, used in early radio transmitters, ignition systems, and educational demonstrations.物ぶつ理りの実じっ験けんで誘ゆう導どうコイルを使つかって火ひ花ばなを発はっ生せいさ
