1.School of Quality and Technical Supervision, Hebei University,Baoding 071002, China; 2.School of Cyberspace Security and Computer, Hebei University,Baoding 071002, China; 3.Beijing ConST Instrument Technology Co., Inc.,Beijing 100094, China; 4.Baoding Cigarette Factory, Hebei Baisha Tobacco Co., Ltd., Baoding 071000, China
TP216;TP391.4;TH86