進(jìn)制計數(shù)管 dcu decimal counting unit: 十進(jìn)制計數(shù)器decimal counting circuit: 十進(jìn)位計數(shù)電路counting tube: 計數(shù)管decimal counter tube: 十進(jìn)計數(shù)管cold cathode counting tube: 冷陰極計數(shù)管下載手機詞典可隨時隨地查詞查翻譯