Some properties on K-row orthogonal matrix

To travel(column) matrix,rows and rows of orthogonal matrix concept of co-matrix to study the lines of some simple properties of orthogonal matrix,the following conclusions: K-row orthogonal matrix is the ranks of the symmetric matrix,and so on.The author studied the row of symmetric matrices and the K-row orthogonal matrix,K-row matrix on the joint relationship and to be proved as well.