margin of safety ratio 中文意思是什麼
margin of safety ratio
解釋
安全邊際比率-
On the basis of comprehensive thorough analysis and forecast of bridge reinforcement or reconstruction expense and benefit, expense benefit analytic method is used to, elect the plan ratio of bridge reinforcement and reconstruction based on different safety margin, providing the basis of the science decision - making for the bridge reinforcement or the reconstruction
摘要在全面深入地分析和預測橋梁加固或重建的費用和效益的基礎上,運用費用效益分析法,進行基於不同可靠度的橋梁加固和重建方案的比選,為橋梁加固或重建決策提供科學的依據。
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