hygroton

例句：

1. 1. The plant needs a humid environment to grow well.
   这种植物需要湿润的环境才能生长良好。
2. 2. The greenhouse uses hygroton to maintain the right humidity levels.
   温室使用湿度调节剂来维持适当的湿度水平。
3. 3.To prevent mold growth, it's important to keep the indoor humidity within a certain range.
   为了预防霉菌生长，室内湿度必须保持在一定的范围内。