hygroscopic salt

例句：

1. 1. The hygroscopic salt in the air helps to keep it moist.
   空气中的吸湿盐有助于保持空气湿润。
2. 2. This type of salt is used as a dehumidifier in some homes.
   这种盐在家庭中用作去湿器。
3. 3. The hygroscopic properties of this salt make it useful for many applications.
   这种盐的吸湿特性使其在许多应用中很有用。