lack : 119 phrases in 20 subjects |
Agriculture | 1 |
American usage, not spelling | 1 |
Automobiles | 2 |
Chemistry | 38 |
Construction | 23 |
Economics | 1 |
Environment | 10 |
General | 9 |
Industry | 1 |
Isolation | 1 |
Materials science | 2 |
Metallurgy | 4 |
Microelectronics | 1 |
Natural resourses and wildlife conservation | 1 |
Optics branch of physics | 4 |
Patents | 4 |
Refrigeration | 2 |
Technology | 12 |
Transport | 1 |
Weapons and gunsmithing | 1 |