School of Applied Mathematics;
Jiangsu Provincial Key Laboratory for NSLSCS;
Nanjing University of Finance and Economics;
Nanjing;
China;
School of Science;
Jiangsu Provincial Key Laboratory for NSLSCS;
Nantong University;
Nantong;
China;
School of Mathematical Sciences;
Jiangsu Key Laboratory for NSLSCS;
Nanjing Normal University;
Nanjing;
China;
Differential; Transform; Method; Delay; Differential; Equation; Method; of; Steps; Analytic; Solution; Approximate; Solution;