algin

例句：

1. 1. Algin is a type of seaweed that has been used in traditional Chinese medicine for centuries.
   海藻是一种在传统中医中被使用了几个世纪的海草。
2. 2.The algaes are known for their ability to produce biofuels and other sustainable energy sources.
   这些海藻因其产生生物燃料和其他可持续能源的能力而闻名。
3. 3.Algin is often used as a thickening agent in food preparation due to its gelling properties.
   由于其凝胶性质，海藻常被用作食品加工中的增稠剂。