hydrophilic gel

例句：

1. 1. This hydrogel is used to treat skin conditions like eczema.
   这种亲水凝胶用于治疗像湿疹这样的皮肤疾病。
2. 2. The hydrogel was designed to absorb water quickly and provide cushioning.
   这种亲水凝胶被设计用来快速吸收水分并提供缓冲。
3. 3. The hydrogel was used in the construction of buildings to improve their energy efficiency.
   这种亲水凝胶被用于建筑施工中，以提高其能源效率。