silica gel H

例句：

1. 1. Thissilica gel is used to absorbmoisture and prevent mold growth.
   这种硅胶凝胶用于吸收水分并防止霉菌生长。
2. 2. Thesilica gel was placed in asealed container to keep it fresh.
   将硅胶凝胶放在密封的容器中以保持其新鲜。
3. 3. Silica gel is commonlyused in food preservation due toits ability to absorb moisture.
   由于其吸水能力，硅胶凝胶常用于食品保鲜。