xerogel

例句：

1. 1.This xerogel is used to absorb moisture from the air.
   这种干凝胶用于从空气中吸收水分。
2. 2.The xerogel has a unique texture that feels cool and smooth on the skin.
   这种干凝胶具有独特的质地，触感凉爽光滑。
3. 3. Xerogels are commonly used in medical applications as they have excellent moisture-absorbing properties.
   干凝胶在医疗应用中被广泛使用，因为它们具有极好的吸湿性能。