鋼軌工作邊 rail surface: 軌面surface working: 表面加工; 表面研磨; 露天椎; 露天作業(yè)working surface: 工作表面; 工作面working party on rail transport: 鐵路運(yùn)輸工作隊(duì); 鐵路運(yùn)輸問(wèn)題工作隊(duì)rail foot surface: 鋼軌底面下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯