 |
fractographic | investigation
| investigation | |
| gen. | 研究 |
| bridg.constr. | 调查研究; 考察; 审查; 调查报告 |
| econ. | 调研; 勘察 |
| hydroel.st. | 调查; 勘测 |
| fractographic: 3 phrases in 3 subjects |
| Automobiles | 1 |
| Metallurgy | 1 |
| Technology | 1 |