3 术语和定义 3.1 潜在影响区域（Potential Impact Circle） 本规定所称潜在影响区域（Potential Impact Circle）是指当管段发生断 裂或爆炸事故后，可能对周边居民导致财产损失及人员伤害的区域。
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组织应识别风险源、影响的区域、事件（包括环境的变化）和其所产生的原因及潜在的后果。
The organization should identify sources of risk, areas of impacts, events (including changes in circumstances) and their causes and their potential consequences.
对大昆明区采用基于GIS的区域模型模拟了这些政策和方法的潜在影响力。
The potential impacts of these policies and approaches have been simulated by means of a GIS-based regional model.
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