道岔基線 branch line of turnout: 道岔側(cè)線main line portion of turnout: 道岔正線部分curve following turnout branch line: 道岔附帶曲線line of reference: 參考線line reference: 管線號(hào)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
