Concentrations of lead( Pb),cadmium( Cd),chromium( Cr),copper( Cu),zinc( Zn) and manganese( Mn) were measured in various organs( such as in liver and muscle) fr
Breeding record is an important way to implement standardized sheep raising,trace major sheep raising epidemic information and ensure the quality and safety of
This paper introduces the connotation of grey relation and computation method of grey relational degree. Based on grey relational model and relevant data during