《英汉医学词典》continuous direct current(CDC) 持续直流电 cdc continuous direct current: 持续直流电cdc constant direct current: 恒定直流continuous (or direct) current: 直流电continuous direct current: 持续直流电continuous current: 恒电流; 恒向电流; 连续电流; 连续流下载手机词典可随时随地查词查翻译