交换机在其交换表中查找目标MAC地址，确定交换机出端口，通过该端口将帧转发至目的地。
The switch looks up the destination MAC address in its switching table, determines the outgoing interface port, and forwards the frame on to its destination through the designated switch port.
经营者应在盛放食品的容器的显著位置或隔离设施上标识出食品名称、配料表、生产者和地址、生产日期、保质期、保存条件、食用方法。
The operator should indicate the information on the separation or other clear place: product name, recipe, supplier name, supplier address, product date, shelf-life, storage condition, how to eat.
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