polymerized rosin

例句：

1. 1.The polymerized rosin is used in the production of high-quality paper.
   聚合松香用于生产高质量的纸张。
2. 2. The manufacturer uses this polymerized rosin to improve the quality of their products.
   制造商使用这种聚合松香来提高他们产品的质量。
3. 3. The polyester fibers are made from polymerized rosin.
   聚酯纤维是由聚合松香制成的。