PDF(1175 KB)
PDF(1175 KB)
PDF(1175 KB)
45钢弹性应力与超声纵波与横波声时比关系的分析
Analysis of the relationship between elastic stressand ultrasonic longitudinal and transverse wave acoustic time ratio of 45 steel
| {{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
| 〈 |
|
〉 |