diamond hardness : 31 phrases in 16 subjects |
Automated equipment | 2 |
Combustion gas turbines | 1 |
Construction | 2 |
Electrochemistry | 3 |
Electronics | 2 |
Makarov | 5 |
Mass media | 2 |
Metallurgy | 2 |
Metrology | 2 |
Military | 1 |
Mining | 1 |
Physics | 1 |
Polymers | 2 |
Quality control and standards | 1 |
Silicate industry | 1 |
Technology | 3 |