有像那样的夸张的金属狗标签。
早期的金属罐装饮料由铁制成，也没有拉标签。
The early metal beverage can was made out of steel and had no pull-tab.
能在金属表面应用的电子标签有很广泛的实用价值。
The IC tag, which can be used on metal surface, has wild practical value.
能在金属表面应用的电子标签有很广泛的实用价值。
The IC tag, which can be used on metal surface, has wild practical value.
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