The system is used to research the groundwater quality in the west plain of Jilin province, the distribution, trend, level and orig…
并以吉林省西部平原地区地下水水质为例，研究了该区地下水水质恶化地区的分布、趋势、恶化预警等级及其成因。
A recognition output is given in the form of ASCll file and the orig...
文中给出了识别结果的文本输出及其图象恢复。
A recognition output is given in the form of ASCll file and the orig...
文中给出了识别结果的文本输出及其图象恢复。
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