Chinese mines have produced rare earths at a much lower cost, forcing competitors to shut down in recent years and creating a near monopoly.
中国的矿山以便宜得多的成本生产稀土，迫其使竞争者们最近几年纷纷倒闭，并创造了接近垄断的局面。
Xstrata's skill has been in buying lower-quality mines and running them more efficiently.
斯特拉塔手法就是购进低质量的矿产，然后把它们进行高效的运作。
Authorities there claim that many gold mines can not work profitably with lower prices.
南非官方宣称，因为金价下跌，许多金矿无法赢利。
In underground coal mines, Rayleigh wave method was used to detect lower coal seam and structures ahead roadways and produced satisfactory results.
在井下用瑞利波方法探测下部煤层、超前探测煤巷、岩巷前方的构造，取得了满意的效果。
Applies to the lower groundwater levels for high head sites, and other occasions, such as mines, high-rise buildings, water booster, mountain water for irrigation and other fruit.
适用于地下水位较低的场所及其它扬程要求高的场合，如矿井、高楼大厦、自来水增压、山区果农灌溉用水等。
Energy saving and lower consumption are the effective way of to raise economic benefits in every mines.
节能降耗是每一个矿山提高经济效益的有效途径。
Energy saving and lower consumption are the effective way of to raise economic benefits in every mines.
节能降耗是每一个矿山提高经济效益的有效途径。
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