hydrous oxide

例句：

1. 1.The reaction of this compound with water is a key step in the process.
   这种化合物与水的反应是该过程的关键步骤。
2. 2.Hydrous oxides are often used as catalysts in chemical reactions.
   水合氧化物通常在化学反应中作为催化剂使用。
3. 3.The hydrous oxide was found to have a high melting point and low solubility in water.
   这种水合氧化物被发现具有高熔点和低水溶解度。