The natural gas station is a complex system. In order to carry out safety evaluation of the natural gas gate station system, D-S evidence theory was adopted to solve problems in the assessment. A safety evaluation model of the natural gas gate station was established by using evidence theory. Application examples show that the method used in safety assessment of the natural gas gate station is effective and reliable.%天然气门站是一个复杂的系统.为对天然气门站系统进行安全评价,将D-S证据理论引入其中,来解决评价过程存在的问题.利用D-S证据理论建立了天然气门站安全评价的模型.实例表明,天然气门站系统用D-S证据理论来进行安全评价是有效的、可靠的.
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