|
scratch-hardness : 45 phrases in 16 subjects |
| Cement | 2 |
| Construction | 1 |
| Geology | 1 |
| Leather | 1 |
| Makarov | 7 |
| Measuring instruments | 1 |
| Metallurgy | 3 |
| Metrology | 1 |
| Nanotechnology | 1 |
| Packaging | 1 |
| Physics | 1 |
| Polymers | 4 |
| Quality control and standards | 7 |
| Road works | 1 |
| Technology | 12 |
| Transport | 1 |