toughening modified的用法和樣例：
例句
- In this paper the application of nanotechnology in toughening PVC is reviewed.
摘要本文主要綜述了納米粒子在聚氯乙烯增韌改性中的應用研究狀況。 - The result shows that they have good properties that toughening and reinforcing can be obtained at the same time.
現有的結果表明，納米復合技術(shù)在聚氯乙烯增韌改性中具有同時(shí)提高材料韌性和強度的特點(diǎn)。
