分析了废钢资源及废钢质量的状况，提出了改善废钢质量途径，介绍了国内外去除废钢中有害元素的研究现状。
The scrap resource and its quality conditions are analyzed and way to improve the scrap quality analyzed and technologies to remove the harmful element from the ferrous scrap introduced.
文章分析了龙王山自然保护区生态旅游资源状况和开发利用条件，提出了生态旅游开发的构想。
Based on the analysis of eco-tourist resources and developing conditions in this nature reserve, this article puts forward the development conception of eco-tourism.
文中对该地区水资源利用状况进行了分析和预测，提出“东水西调”调水的必要性。
The paper analyses and forecasts the situation of water resources utilization in this zone, and puts necessity of "from east to west" transfer water.
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