我认为这物品最相当于现代社会的办公室里，大家都佩戴在脖子上通过安全检查时的工作身份牌。
The nearest modern equivalent I can think of to this is the ID card that everybody working in an office now has to wear round their necks to get past the security check.
请您在锻炼时佩戴手牌，并配合服务人员的核对工作。
Please wear the hand key once entering and show it to our service staff for identification if necessary.
工作时间必须佩戴公司统一发放的工作牌。
In 4, the working time must wear a company uniform payment work.
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