The basic process of surface treatment can be divided into three stages: pretreatment, middle after processing.
表面处理的基本过程大致分为三个阶段：前处理，中间处理和后处理。
The reliability of environment information is improved by pretreatment. Furthermore, fuzzy processing is taken.
在信息处理上，先进行预处理，提高可信度，后进行模糊处理。
Then, analyzes and compares methods of processing vibration signal in used, involves pretreatment methods and secondary treatment methods.
然后，分析对比了振动信号的一般处理方法，包括预处理和二次处理的方法。
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