rivanol

例句：

1. 1.The rivanol in the oil is used to make soaps and cosmetics.
   油中的香胶用于制作肥皂和化妆品。
2. 2.The rivanol content in the wood is high, which makes it resistant to decay.
   木材中的香胶含量高，使其具有抗腐烂的特性。
3. 3.The rivanol in the paint helps to protect the surface from scratches and wear.
   油漆中的香胶有助于保护表面免受刮擦和磨损。