This paper systematically analyzes the crisis level for the major large and mid large metal mines in China.

本文对我国主要金属矿产的大中型矿山进行了系统的危机程度分析。

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This conclusion is of guiding significance for energy-saving in metal mines and the remolding of old ventilation systems.

本文的结论在金属矿山节能和老系统改造中具有一定的指导意义。

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In the past time, the traditional methods were always used to select mining method by rock gold mines and other metal mines.

在岩金矿山或其它金属矿床的采矿方法研究中，过去一直用传统的方法进行采矿方法选择。

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Although that is two to three times the cost of a metal detector, it is less than the price of the fancy explosive-sniffing equipment that is the main rival technology being developed for detecting metal-free mines.

ECONOMIST: Landmines

In many cases, he said, companies are extracting more metal from existing or previously shuttered mines, rather than finding new ones.

FORBES: Global Output From Gold Mines In Upswing Although Some Constraints Persist

High beta names like Aurizon Mines (AZK), Kinross Gold (KGC) and Agnico-Eagle Mines (AEM) will squeeze metal shorts and run fast and furious.

FORBES: How to Trade QE3