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penetration : 511 phrases in 56 subjects |
| Agriculture | 17 |
| Agronomy | 2 |
| Automated equipment | 2 |
| Automobiles | 1 |
| Biology | 1 |
| Business | 7 |
| Chemistry | 6 |
| Coal | 1 |
| Commerce | 2 |
| Communications | 7 |
| Construction | 62 |
| Earth sciences | 15 |
| Economics | 10 |
| Electronics | 16 |
| Energy industry | 3 |
| Engines | 1 |
| Environment | 1 |
| Finances | 1 |
| General | 36 |
| Geology | 3 |
| Geomechanics | 14 |
| Health care | 2 |
| Industry | 22 |
| Information technology | 1 |
| International Monetary Fund | 1 |
| Isolation | 1 |
| Labor law | 1 |
| Law | 13 |
| Life sciences | 3 |
| Marketing | 2 |
| Materials science | 4 |
| Mechanic engineering | 7 |
| Medical | 11 |
| Medical appliances | 3 |
| Metallurgy | 47 |
| Microelectronics | 2 |
| Microsoft | 1 |
| Mining | 26 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 1 |
| Nuclear physics | 4 |
| Oils and lubricants | 3 |
| Physics | 15 |
| Quality control and standards | 1 |
| Radiation | 3 |
| Refrigeration | 1 |
| Road works | 1 |
| Scuba diving | 1 |
| Superconductivity | 2 |
| Technology | 88 |
| Textile industry | 13 |
| Thermal Energy | 1 |
| Transport | 11 |
| Video recording | 1 |
| Weapons and gunsmithing | 3 |
| Welding | 4 |