impact ductility的用法和樣例：
例句
- Polypropylene shows a high mechanical strength, tensile strength, but a low notched impact strength, PP resists stress cracking and it is easy to weld.
聚丙烯具有高剛性，高硬度和高強度，但缺口沖擊韌性一般。 - By purifying the alloy melt, refining matrix grain and carbide, it is possible to increase the impact toughness of the Cr-alloyed white cast iron.
通過(guò)凈化合金液，細化基體晶粒，細化碳化物可使鉻合金白口鑄鐵的沖擊韌性提高。
