rosin acid

例句：

1. 1.The chemical is used in the production of rosin and wax.
   这种化学物质用于生产松香和蜡。
2. 2. Rosin is a by-product of beeswax production.
   松香是蜂蜡生产的副产品。
3. 3. The rosin acid reacts with water to form a soapy solution.
   松香酸与水反应形成一种肥皂溶液。