[電學(xué)] 直流脈沖撥盤轉(zhuǎn)換鏈 dial train: 撥號(hào)音中繼線trains interval between dial pulses: 撥號(hào)盤脈沖串間隙dc switching point: 直流轉(zhuǎn)換點(diǎn)switching dc voltage: 開關(guān)直流電壓automatic dial switching network: 自動(dòng)拔號(hào)交換網(wǎng)絡(luò)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯