英语字典

press mark

P 开头单词

同根派生

     

英汉例句

  • Crack nucleation and propagation in wear-resistant bainite ductile cast iron were investigated by press trace method and SEM.
    采用压痕法及扫描电镜观察，研究了抗磨贝氏体球铁中裂纹的形核与扩展。