房地产基础知识及名词解释主讲人:杜文勇 Evaluation only. Evaluation only. Created with Aspose.Slides f...
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磁性材料Jump to: navigation, search/ 181磁性材料magnetic material可由磁场感生或改变磁化强度的物质。按...
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状态基准保养:CBM(Conditionbasedmiantenance)设定一定的时间,借由设备诊断技术来观测设备有无劣化或故障;并...
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