The rosin can be a chemically-modified rosin.
该松香可以是化学-改性的松香。
Disproportionated rosin is one of the most important products of modified rosin, it has many USES in industry.
歧化松香是松香改性的重要产品之一，有着广泛的用途。
A number of polyester modified rosin with foam formulations have been utilized to prepare rigid urethane foams.
若干聚酯改性松香及其泡沫配方已用于制备硬质尿烷泡沫。
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