We estimate about one million children worldwide are involved in small-scale mining.

我们估计，实际上这种小规模的矿井中有大约100万名童工。

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The scientists called for better conservation management in the unprotected, state-owned areas, where hunting and small-scale illegal mining is common.

科学家呼吁对发现新物种的雨林应给予完好的保护，因为当地的违法狩猎和矿山开采现象很普遍。

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The deposit is of large scale of mineralization, but the reserves of gold are small and so is the depth of mining.

该矿床矿化规模巨大，但已发现的金矿储量不大，矿体开采深度也较小。

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Studies about Kyrgyz small-scale mining were conducted by the World Bank and the Geological Survey of Denmark and Greenland.

BBC: NEWS | Technology | Miners tap into video goldmine

Using the technology, they were able to share their experiences with fellow miners in Ghana, where small-scale mining has been going on for years.

BBC: NEWS | Technology | Miners tap into video goldmine

People survive either from agriculture or from small-scale mining of gold or colombo-tantalite, an ore used in mobile phones that makes its way to the outside world through Uganda or Rwanda.

ECONOMIST: Eastern Congo