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本文将断裂力学方法用于预测天然气输送管线失效点的泄漏面积，其计算结果对管线的改进、安全控制系统设计和在用管线安全风险评价具有指导意义。
In this paper, the fracture mechanics method is applied to predict the leakage area of natural gas pipeline failure points. The calculation results are of guiding significance to the improvement of pipeline, the design of safety control system and the risk evaluation of pipeline safety.