geograph相关论文
Experimental Study on 3D Geometrical and Fractal Characteristics of Fracture Surface of Rock-Like Ma
In order to research the characteristic and mechanism of fracture of rock-like materials,the morphology of rock fracture......
笔者收集了约3,000种语言的基本语序数据，对其地理分布和亲缘关系分布进行了研究，证明了以下几点。拥有不和谐语序的语言数量众多，但......
