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- Practice of Quick Drill in Coal Mine Emergency Rescue 快速鉆孔技術(shù)在煤礦應急救援中的實(shí)踐
- They are ventilating the sap of a coal mine. 他們正在使煤礦坑道通風(fēng)。
- That coal mine is no longer worked. 那個(gè)煤礦已經(jīng)不經(jīng)營(yíng)了。
- Some coal mines had to shut down. 有些煤礦不得不關(guān)閉。
- Many coal mines are careless with worker safety. 很多煤礦對工人的安全問(wèn)題根本不管不顧。
- There are many coal mines in the north. 北方有許多煤礦。
- There was a terrible blast in the coal mines. 礦坑中發(fā)生了可怕的爆炸聲。
- Coal mines have given collectors good samples. 煤礦給(化石)收集者提供了很好的樣品。
- Foul or poisonous gas that sometimes pollutes the air in coal mines. 礦井瓦斯，有毒氣體礦井中有時(shí)污染空氣的惡臭氣體或有毒氣體
- They underwrote the coal mine's bonds. 他們同意買(mǎi)下該煤礦的未認購的股票。
- There is a coal mine near my home town. 我的家鄉附近有一個(gè)煤礦。
- The coal mines of North China are centred in Shanxi Province. 華北的煤礦集中在山西省。
- He tried to regularize the management of coal mines. 他試圖將煤礦的管理系統化。
- We decided to open out a coal mine near the city. 我們決定在城市附近開(kāi)發(fā)一煤礦。
- The coal mine was closed down due to exhaustion. 這煤礦因礦源枯竭而關(guān)閉了。
- They are developing a new coal mine. 他們在開(kāi)發(fā)新煤礦。
- They sold the coal mine at a profit. 他們把煤礦賣(mài)掉賺了錢(qián)。
- China Geological Coal Mine Corp. 中國地方煤礦總公司。
- Coal Gas Factory of Datong Coal Mine Gro. 大同煤礦集團有限責任公司煤氣廠(chǎng)。
- A passage or gallery in a coal mine. 通道煤礦中的通道或水平巷道
