Yeah, oh, I wanted to check the chemicals we used in the lab when we analysed those samples — was it potassium chromate and silver nitrate?

。了，我想确认一下在实验室分析那些样品时使用化学制剂，我们用是铬钾和硝银，吗？

When the metal coating is punctured or scratched, the capsules in the damaged area burst and ooze restorative liquids, in the form of compounds called trivalent chromates.

当金属覆盖层受到扎刺或划损时，受损区囊将会破裂并渗出具有恢复性液体---三价铬钝化化合物。