单词：ketone resins
ketone resins的用法和样例：
例句
- The resins were used to turn out millions of helmet liners.用这类树脂生产了成百万只钢盔内衬。
- The rosin modified phenolic resin, a mainly important one among all resins used as bands for offset inks, has the call for printing ink.松香改性酚醛树脂是平版油墨用连接料树脂的主要代表，也是印刷油墨中用量最大的一类树脂。
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