 |
| stress- concentration factor: 19 phrases in 8 subjects |
| Bridge construction | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 2 |
| Plastics | 1 |
| Polymers | 1 |
| Technology | 10 |
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