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Development of machine-maintenance training system in virtual environment

The periodical inspection of nuclear power plants is indispensable in their operations. However, it requires a lot of workforces with a high degree of technical skill in assembling and disassembling various sorts of machines in hazardous environment. In this study the authors are developing a machine-maintenance training system in a virtual environment which can be used easily by novice users. In this paper, the system configuration is outlined, and proposed is a method for representing assembly and disassembly procedures by using Petri net.