raw acid

例句：

1. 1. The raw acid was very corrosive and could damage the metal parts.
   生酸非常腐蚀性，可能会损坏金属部件。
2. 2.The chemical engineers were working on developinga new type of raw acid.
   化学工程师们正在研究开发一种新型的生酸。
3. 3.The raw acid was used to dissolvethe glass in the laboratory.
   生酸被用来在实验室溶解玻璃。