What is the correct way of using the universal adaptor ?
万能插座的正确使用方法是什么？
Gas and vacuum are preferably supplied by a universal adaptor universal adaptor.
气体和真空线路优选地由通用适配器提供。
The stamping pieces are mainly used for electrical fields as Mobile phones, Fax machines, Connectors, Plugs, Receptacle, adaptors, AC socket and Universal Adaptor.
冲压件主要应用在移动电话，传真机，连接器，插头，插座，适配器，交流电源插座和通用适配器的电气领域。
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