This paper, based on the information obtained from flume experiments and field observations, concerns with the analyses of the flow with hyperconcentration of s
Lipotes usually occurs in pairs or in small loose groups. The calves are born in March-April.The Finless porpoises are usually seen in groups of five or six ind
Based on the empirical electron theory of solids and molecules of S. H. Yu, this paper proposes (i) the calculating model of valence electron structures in L<sub>