1Stephens M K, Leewis K, Moore D K. A model for sizing high consequence areas associated with natural gas pipelines [ C ]. Proceedings of IPC 02' 4^th international pipelines conference, Calgary, Alberta, Canade, 2002,Sept-Oct., 1-9.
2Technica. Techniques for Assessing Industrial Hazards[ C ]. World Bank Technical Paper Number 55, The International Bank for Reconstruction and Development,The World Bank, Washington, DC, USA. 1998.
3Crane Co. Flow of fluids through valves[R]. Crane, NY,USA., Fittings and Pipe, Metric Edition-SI Units. 1981.