为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Calcium (Ca),phosphorus (P),and chitin are the main components of the exoskeleton of krill.Defluoridation of a solution ......

Each type of fishery has its own characteristic behavior, and understanding this condition is an important part of devel......

Antarctic krill (Euphausia superba) were collected from the Prydz Bay region during the austral summer of 1999/2000. The......