The synthetical model of safety comprehensive evaluation for air traffic control was established in the employ of principal element analysis method.
介绍了舰艇救生通道优化设计中综合安全评估的方法和步骤，着重考虑了人为因素对系统影响的不确定性。
Slice method and finite element method are principal methods of soil slope stability analysis.
条分法和有限元法是土质边坡稳定分析的主要方法。
Slice method and finite element method are principal methods of soil slope stability analysis.
条分法和有限元法是土质边坡稳定分析的主要方法。
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