catalyst ageing meaning in English

催化剂老化

Analyzing diesel oxidation catalyst aging mechanism , working out a testing cycle of fast aging that should satisfy chinese diesel - powered vehicle features and the transportation status and establishing corresponding test equipment are main tasks of this dissertation
本论文主要工作就是研究柴油机氧化催化剂的老化机理，提出适合我国车辆条件和交通状况的氧化催化器快速老化试验循环，并建立相应的考核试验系统。
However , this dissertation mainly focuses on diesel catalyst aging mechanism including heat deterioration and performance degradation caused by toxic substance . following the above conclusions , a fast aging test cycle is produced which consists of three stages
论文的主体分析了柴油机氧化催化剂的老化机理，主要是热失活和化学中毒老化，研究了我国主要几种柴油机的排气温度特性，并在催化剂老化机理基础上提出车用柴油机氧化催化器快速老化试验循环，即三段式老化循环。