振铃电路,冲击激励电路rc: RC =resistance capacitance ( ...ring: vt. (rang rung ) 1.鸣,敲(钟),摇( ...circuit: n. 1.(某一范围的)周边一圈;巡回,周游;巡回路线[ ...rc circuit: rc电路; 阻容电路ringing circuit: 冲击激励电路; 振铃电路下载手机词典可随时随地查词查翻译