The damage styles of cast-in cutting pick and hard-solder forging cutting pick are analyzedaccording to the comparing experiment under coal mining well.

通过井下采煤对比试验，分析了镶铸截齿与锻造针焊截齿的损坏特点。

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As for the Mining Boom III, the pick up in export volumes flowing from the surge in mining investment in iron ore, coal and liquid natural gas will start to get underway around 2014-15.

BBC: Viewpoint: Is Australia's resources boom over?