延津县
- 网络Yanjin County
延津县-
延津县风沙土及其改良利用
Studies on Amelioration and Utilization of Blown-sand Soil in Yanjin County
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延津县沙荒地的开发与治理
Development and Rehabilitation of Sand Wasteland in Yanjin County
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延津县农田投能与提高投能效率的途径
Energy Input into Farmland and the Way to Improve Energy Efficiency in Yan Jing County
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县域中小企业人力资源开发策略研究&以延津县为例
A Study on How to Develop HR of SMEs in Counties & Taking an Example of Yanjin County
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应用余弦模型对延津县1988～1997年农药中毒季节性特征进行了分析。
By means of cosine model , the seasonal characteristics of pesticide poisoning happening in Yanjin county during the period from 1988 to 1997 were analyzed .