grid-glow tube英 [ɡrɪd ɡləʊ tjuːb]美 [ɡrɪd ɡloʊ tuːb]网络 栅极辉光放电管电力双语例句Contact with electricity or electric discharge power grid-glow tube触电或接触放出的电流强信号栅控辉光放电管