trunk line circuit英语标准发音：trunk line circuit英式发音：美式发音：翻译中文干线电路trunk line circuit - 基本释义[词典1]长途线(电)路trunk line circuit - WEB词典trunk line circuit长途线路trunk-line circuit干线回路toll line trunk circuit长途线中继电路 参考资料： 1.百度翻译：trunk line circuit2.有道词典：trunk line circuit3.爱词霸：trunk line circuit
