That is, any profile can be selectively applied or de-applied without affecting the underlying UML model in any way.
也就是说，任何一个profile都可以有选择性的以任何方式被应用或是不被应用，只要不影响基础的UML模型。
The SCR technology, principle of SCR for de-NOx in flue gas, the effect factors of process, the type of SCR catalyst and reaction characteristics are introduced.
催化剂是选择性催化还原脱硝技术（SCR）的核心，催化剂的性能直接关系到脱硝效果的好坏。
The principle, characteristic and its application in our country of common flue gas De-NO_x technology were analyzed. Based on the actual condition in our country the feasible scheme was proposed.
本文分析了几种常用的烟气脱硝技术（ 选择性催化还原脱硝技术、选择性非催化还原脱硝技术、碱性溶液吸收法和等离子体活化法等）的原理、技术特点以及在我国的应用情况。
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