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rural household appliances earthing protection
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rural household appliances earthing protection
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农学
﹝农业电气化与信息化工程﹞
释
rural household appliances earthing protection
农村家用电器接地保护
将正常运行时不带电,而在绝缘材料损坏或故障情况下,可能呈现危险的对地电压的家用电器金属外壳与接地装置之间作良好的电气连接。
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social information systems
Social Informatization
social informatization
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Social inherit and supersede
social insect
social institution
social insurance
social insurance agency
social insurance for employees
social insurance for residents
social insurance fund
social insurance fund investment
social insurance fund management
social insurance fund management model
social insurance law
Social Insurance Law of the People's Republic of China
social insurance management
social insurance management model
social insurance premiums
social insurance registration
social insurance relationship
Social insurance service management
social insurance statistics
social insurance subsidy
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