对废旧零部件信息残缺性的分析和修复利用是优化废旧零部件再设计，提高废旧零部件利用率及利用价值的重要基础。
The analysis and restore on incomplete information of used parts play an important part in optimizing the redesign process and improving the utilization ratio to used parts.
残缺信息的修复主要包括废旧零部件材料本体信息、材料赋予信息等信息的修复过程与方法；
The methods of repairing used parts'incomplete information contain two parts: technologies of acquiring used parts'information and technologies of retrieving the initial design information.
残缺信息的修复主要包括废旧零部件材料本体信息、材料赋予信息等信息的修复过程与方法；
The methods of repairing used parts'incomplete information contain two parts: technologies of acquiring used parts'information and technologies of retrieving the initial design information.
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