[1] [1] Zhu Linquan. Rapid Prototyping Technology[M]. Bejing: National Pefense Industry Press, 2003.

[2] [2] Yan Yongnian, Li Shengjie, Zhang Renji. Rapid prototyping and manufacturing technology: principle,representative technics, applications, and development trends[J]. Tsinghua Science & Technology, 2009, 14(s1): 112-116.

[3] [3] Li Xiangsheng, Yin Yanfang, Huang Shuhuai. Investigation on shrinkage of parts made by SLS[J]. Journal of Materials Science and Engineering, 2003, (6): 830-832.

[4] [4] Pang Guoxing. Research on Rapid Prototyping Forming Technology and Post- treatment Coating with Powder Selective Laser Sintering[D]. Xuzhou: China University of Mining and Technology, 2009.

[5] [5] Wang Xiang, Cui Rui, Yang Hao. Theoretical and experimental studies on three- dimensional temperature field of selective laser sintering of engineering plastics powder[J]. Chinese J Lasers, 2011, 38(1): 0103005.

[6] [6] Liu Sifeng. Grey System Theory and Its Applications[M]. Beijing: Science Press, 2010.