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。
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。
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。
The operation cost of small scale trackless equipment in a mining test is described.
介绍了小型无轨设备在采矿试验中的运行成本情况。
Similarity measure is a key technology of time series mining, whose existing methods are not available for the analysis of small-scale multivariate time series.
相似性度量是金融时间序列挖掘中的一项关键技术，但现有的度量方法不适合分析小规模的金融多元时间序列。
The existing technical mining method efficiency is low, the cost is high, the scale is small, the big area implements and lacks the market competition ability with difficulty.
现有技术的开采方法效率低、成本高、规模小，难以大面积实施和缺乏市场竞争能力。
This method is suitable to apply in the mining area of medium-small scale and the storage and processing of the results of survey.
适于地质队中小型矿区、测区测量成果的保存、加工、应用。
Finally, the author concluded the regularities of gold mining, i. e. combining mining together with exploration, from small to largo in mining scale, and from shallow to depth in mining steps.
并总结出了边采边探、从小到大、由点到面、由浅而深的金矿开采规律。
It is reported that the mining area rich in coal resources, coal mining can be thick, buried shallow dip small coal occurrence stability, abundant reserves, suitable for large-scale open-pit mining.
据介绍，这一矿区煤炭资源丰富，可采煤层厚、埋藏浅、倾角小、煤层赋存稳定、储量丰富，适于大型露天开采。
It is reported that the mining area rich in coal resources, coal mining can be thick, buried shallow dip small coal occurrence stability, abundant reserves, suitable for large-scale open-pit mining.
据介绍，这一矿区煤炭资源丰富，可采煤层厚、埋藏浅、倾角小、煤层赋存稳定、储量丰富，适于大型露天开采。
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