剪力滞效应的分析对于现代桥梁设计的安全性和经济性有较大意义。
The analysis of shear lag has an important significance on safety and economy to the design of modern Bridges.
对火电厂SCR脱硝系统设置烟气旁路通道的必要性进行了论述，分析了SCR系统设置旁路烟道的经济性、安全性以及可能出现的不利影响。
The necessity of setting bypass in SCR system in thermal power plants was discussed. The system economic and possible adverse influencing of SCR with bypass were analyzed.
对矿井排水系统的安全性进行了分析，提出了泵组排水系统技术方案，并对这种方案的安全性、技术性、经济性给予探讨。
The safety of pumping water system in the mine is analysed and technique scheme of pump group pumping water system is put forward.
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