安全与防护：本品为弱酸性物品，溅在皮肤上及时用清水冲洗，操作时要佩带手套和防护眼镜。

Safety and guard: this product is weak acidic. Wash skin with clean water immediately if this product is splashed on skin. Wear glove and protective glass while operating.

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第一起事件发生在2008年12月，两瓶酸性物质被掷往一个很多人正在购置圣诞节物品的步行购物区，造成46人烧伤。

The first incident was in December 2008, when two bottles of acid were hurled into a pedestrian shopping area packed with Christmas shoppers, burning 46 people.

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