固定螺栓: 76 phrases in 15 subjects |
Architecture | 3 |
Automobiles | 18 |
Compressors | 2 |
Drilling | 7 |
Electric machinery | 13 |
Electronics | 1 |
Engineering geology | 1 |
General | 2 |
Mechanics | 2 |
Metallurgy | 2 |
Mountaineering | 1 |
Nautical | 1 |
Shipbuilding | 1 |
Technology | 19 |
Wind Energy | 3 |