ball joint : 52 phrases in 15 subjects |
Chemistry | 1 |
Construction | 1 |
Drives | 5 |
Earth sciences | 3 |
General | 8 |
Measuring instruments | 1 |
Mechanic engineering | 5 |
Medical | 9 |
Medical appliances | 2 |
Metallurgy | 2 |
Mining | 1 |
Optics branch of physics | 5 |
Technology | 3 |
Transport | 5 |
Weapons and gunsmithing | 1 |