后退式開采法miningright: 采礦權(quán)miningplan: 開采計(jì)劃 礦山工捉面圖miningsu idenceo ervation: 開采沉陷觀測(cè)miningoregrade: 采礦等級(jí)miningsubsidence: 礦穴沉陷下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯