Conventionally, highly corrosive chemicals, such as hydrofluoric acid, are used to dissolve impurities.
传统上， 使用高腐蚀性化学品，例如氢氟酸来溶解杂质。
Corrosive chemical
原声例句
经济学人 Science and technology
英语百科
Corrosive substance
A corrosive substance is one that will destroy and damage other substances with which it comes into contact. It may attack a great variety of materials, including metals and various organic compounds, but people are mostly concerned with its effects on living tissue: it causes chemical burns on contact.
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