本文从阳城的冶炼历史、矿产资源、犁镜制范工艺等方面，分析了阳城犁镜质量优异的原因。
From the ways of smelting history, mineral resources and mould-making technology in Yangcheng, the article analyses the results why the Yangcheng Mouldboards were so great in the quality.
随着矿产资源开发强度越来越大，矿区地质环境问题对生态环境质量的影响日益突出。
With the strength of mineral resources development is larger and larger, it is highlight day and day that the mine area geological environment problems affect on the quality of the ecological one.
本文研究、分析了国内外泥炭矿产资源的储量、分布、质量、开发利用、生产、市场、价格及发展趋势；
This paper deals with the reserve, distribution, quality, development, production, market, price and trend of peat resources in China and abroad.
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