盐酸

例句：

1. 1. This chemical is used to dissolve metals in the laboratory.
   这种化学物质在实验室里用来溶解金属。
2. 2. The doctor prescribed a solution of hydrochloric acid for her pain relief.
   医生开了一种含有盐酸的溶液来缓解她的疼痛。
3. 3. The factory uses this chemical to clean its equipment.
   这家工厂使用这种化学物质来清洁其设备。