露天開採(cǎi);露天礦 opencast mining: 露天采礦; 露天開采法opencast coal mining: 露天采煤; 煤礦露天開采opencast mining machinery: 露天采礦機(jī)械opencast mining method: 露天開采法opencast mining plan: 露天礦礦圖下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
