8Menard, Bruno. Optical Character Recognition. Quality, 2008 (5).
9HUANG Hong-zhong, TONG Xin, ZUO Ming-jian. Posbist fault tree analysis of coherent systems[J]. Reliability Engin- eering and System Safety, 2004, 84(2): 141-148.
10BAE C, KOO T, SON Y, et al. A study on reliability cen tered maintenance planning of a standard electric motor unit subsystem using computational techniques[J]. Journal of Mechanical Science and Technology, 2009, 23 (4) : 1157- 1168.
