In the traditional theory of real right,object refers to material and the object of real right is object.Chinese real law divides object instead of defining it,which leads to the object of real right indefinite.With the development of science and technology and market economy,the concept of real right and the object of real right are expanding.Not only tangible object,but also intangible object such as natural forces are material of the traditional civil law.The object of real right is not limited to object...