采用扫描电镜（SEM）和X射线能谱分析仪对催化裂化装置（FCCU）沉降器内结焦物的微观组织结构和成分进行了分析，将结焦物划分为软焦和硬焦。
The microstructure and composition of coke from different parts of the FCCU disengager were analyzed by using both scanning-electron microscope(SEM) and X-ray analysis(EDS) methods.
采用扫描电镜（SEM）和X射线能谱分析仪对催化裂化装置（FCCU）沉降器内结焦物的微观组织结构和成分进行了分析，将结焦物划分为软焦和硬焦。
The microstructure and composition of coke from different parts of the FCCU disengager were analyzed by using both scanning-electron microscope(SEM) and X-ray analysis(EDS) methods.
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