选择空压机的基本准则是经济性、可靠性与安全性。
Choose air compressor is the basic rule of economy, reliability and security.
然而，有办法，以燃油经济性和安全性在同一时间。
However, there are ways to serve fuel economy and safety at the same time.
对装置的安全运行，催化剂的寿命，运行经济性进行了讨论。
The plant safety running, the catalyst life time and the running economy was discussed.
燃煤电厂的安全性、可靠性和经济性在很大程度上取决于锅炉燃烧系统。
The safe, reliability and economic operation lie on combustion system of boiler.
机泵设备安全运行的经济性。
安全稳定性和经济性一直以来都是电力系统运行管理的两大主题。
Security-stability and economics are the two topics for the power system operation and management.
而在紧急情况下，首要目标是运行的安全性，其次才是经济性。
In emergency condition, the first objective is to operative security, secondary is economically.
最后文中从工程的安全性、经济性角度综合考虑，确定合理的基础外形。
The reasonable shape of the foundation is finally determined from economic and safe aspects.
核电的安全性和经济性始终是人们关注的问题。
Safety and economy efficiency of Nuclear Power Plant is always concerned by people.
包括经济性分析、节能性分析、环保性分析、安全性分析和技术分析。
Include: economic analysis, energy analysis, environmental analysis, security analysis and technical analysis.
因此，协调电力系统的经济性、安全性于一体显得尤为重要。
Therefore, how to consider the economy and security is important.
所以在进行存储外包时，不仅要考虑其安全性，还要顾及到经济性。
Therefore, what outsourcing needs is not just safety, but also cost-efficiency.
所以在进行存储外包时，不仅要考虑其安全性，还要顾及到经济性。
Therefore, what outsourcing needs is not just safety, but also cost-efficiency.
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