Located in the west of Henan Province in central China, Luoyang occupies quite an important geographic location. It is i......

For most people， the thought of picking fruit， flowers and plants - to wear - is incomprehensible. For the Axi people， at l......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......