研究周期性电热除冰系统加热控制律对表面温度的影响是进行系统设计和优化的前提。
The system design and optimization depends upon the research on the effect of electro-heating pulse of periodic electro-thermal deicing system on surface temperature.
通过介绍美国艾斯苯技术公司水软件的开发，基本原理，主要功能，工作步骤和应用实例，说明这个软件是专门用于水和废水系统设计和优化的软件。
The development, basic principal, key functionality and a practical example of Aspen Water software, which is specially applied to the design of the water and wastewater system, are introduced.
循环流化床锅炉燃烧系统的数值模拟和机理建模涉及到对气固两相流方式下燃烧过程的理解和描述，已有的机理模型都十分复杂，不适合用于现场控制系统设计和优化。
For the numerical simulation and mechanism modeling of combustion system involve the gas-solid flow principle, existing models are to complex to be suitable for design and optimizing of CFB unit.
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