您要查找的是不是：
- The State shall encourage coal mining enterprises to carry out second mining or extract residual coal at the margins of mining areas and very thin coal seams. 国家鼓励煤矿企业进行复采或者开采边角残煤和极薄煤。
- Mining Method of Residual Coal Seam in Small Coal Mine 小煤矿复采残采煤层采煤方法
- 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。
- residual coal mining 残煤开采
- Effective recovery of residual coal was realized by controlling centralized stress of wedge pillar in gob and rational equipment match of recovery mining face. 通过对刀柱老采区煤柱集中应力的控制,以及复采工作面装备的合理配套,实现刀柱下遗留煤体的有效回收,提高煤炭资源采出率,增加企业经济效益。
- 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。
- 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。
- The coal mining area is in the center of the basin. 煤矿区位于盆地的中心。
- 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。
- We decided to open out a coal mine near the city. 我们决定在城市附近开发一煤矿。
- The coal mine was closed down due to exhaustion. 这煤矿因矿源枯竭而关闭了。
