It indicates that crevasse channel is a kind of very narrow and shallow short range small channel with a fixed path which is formed among wide ranged channels by the major channel after the avulsion crevasse in a fluvial and deltic sedimentary.

Analysis and countermeasure to problems of navigation safety management in port waters;

Clinical evaluation of lanthanum-contained rinse solution resistant abilities to the aged dental root caries for three years;

The patients were randomized into NaF,LaCl_3,NaF+LaCl_3 rinse solution group and control rinse solution group.

Finite element analysis of Jiangkou reservoir-induced earthquake;