存储冗余 meaning in English

storage redundancy

For the data - storage of the surface , the data of the surface , patch and vertex have been stored by using the grid - frame formed by three chain - table . so the lookup of the data is easy and the redundancy of the storage is small
曲面的数据存储，分别用了三个链表形成的网状结构来存储曲面( surface ) 、网格平面片( patch )和顶点( vertex )的数据，这种结构便于数据的查寻，并且存储冗余小。