单词：age hardening steel
age hardening steel的用法和样例：
例句
- Experiments of dent resistance show that the dent resistance of isotropic steel is poorer than BH steel.抗凹陷性测试结果表明，各向同性钢的抗凹陷性低于烘烤硬化钢。
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iron and steel industry 钢铁工业 ironworks 铁厂 foundry 铸造车间 steelworks, steel mill 钢厂 coking plant 炼焦厂 electrometallurgy 电冶金学 powder metallurgy 粉末冶金学 blast f
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