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- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- high coal mining 大采高
- Coal mining has always been a dangerous occupation. 采煤向来是一种危险职业。
- General bituminous coal mining; Motor freight. 一般烟煤开采;汽车货运。
- They underwrote the coal mine's bonds. 他们同意买下该煤矿的未认购的股票。
- The landscape was destroyed by coal mining. 自然景观由于挖煤而受到了破坏。
- This technology fits abroad excavating coal mine because of its high veracity. 该技术有较高的准确率,适用于煤矿采区。
- There is a coal mine near my home town. 我的家乡附近有一个煤矿。
- Jiamusi Coal Mining Machinery Co. 和佳木斯煤矿机械有限公司。
- XUZHOU COAL MINING GROUP CO., LTD. 江苏徐州矿务集团有限公司。
- A coal mining boom has swept across north China. 煤炭行业的繁荣,在华北到处可见。
- Heilongjiang Coal Mining Machinery Group Co. 宣布,已向国有黑龙江煤矿机械集团有限公司。
- China has 20 of the world's 30 most polluted cities, largely due to high coal use and motorization. 世界上最污染的30个城市中中国的占有20个。
- The coal mining area is in the center of the basin. 煤矿区位于盆地的中心。
- To meet the high coal injection rate it is necessary to modernize PCI technology. 为了适应高炉大量喷吹煤粉,必须对高炉喷煤工艺及设备进行改造。 方向是:煤场要增加储煤能力,实现自动配煤;
- Township enterprises mainly in coal mining. 乡镇企业以开采煤炭为主。
- Scope: Coal mining. Coal mining. 经营范围:开采原煤。
- Power plants have been reluctant to maintain high coal inventories due to the rising prices. 煤炭价格不断上涨,发电厂很难维持大量的煤炭存量。
- Burning faulty coal is tried out in a fixed-bed gasifier,to solve the problems of high coal price and production cost. 固定层煤气发生炉试烧劣质煤,以解决煤价高、生产成本大的问题。