AC-AC | variable frequency
| variable frequency abbr. | |
| geophys. | 可变频率 |
|
AC-AC : 646 phrases in 52 subjects |
| Advertising | 1 |
| Agriculture | 1 |
| Air defense | 9 |
| Animal husbandry | 1 |
| Automated equipment | 2 |
| Automobiles | 22 |
| Aviation | 21 |
| Business | 1 |
| Chemistry | 20 |
| Commerce | 2 |
| Communications | 7 |
| Drilling | 5 |
| Earth sciences | 3 |
| Electric machinery | 131 |
| Electricity | 14 |
| Electronics | 119 |
| Energy industry | 2 |
| Engineering geology | 3 |
| Food industry | 1 |
| Football | 1 |
| General | 8 |
| Genetics | 2 |
| Geophysics | 3 |
| Hydroelectric power stations | 27 |
| Information technology | 10 |
| International trade | 1 |
| Materials science | 3 |
| Mechanic engineering | 3 |
| Mechanics | 1 |
| Metallurgy | 33 |
| Multimedia | 4 |
| Nautical | 2 |
| Nuclear and fusion power | 7 |
| Oil / petroleum | 13 |
| Pharmacology | 2 |
| Plastics | 5 |
| Power electronics | 1 |
| Project management | 2 |
| Rail transport | 56 |
| Refrigeration | 2 |
| Reproductive biology | 2 |
| Scientific | 1 |
| Shipbuilding | 19 |
| Solar power | 1 |
| Space | 13 |
| Sports | 2 |
| Steel production | 7 |
| Superconductivity | 8 |
| Technology | 13 |
| Telecommunications | 10 |
| Textile industry | 5 |
| Wind Energy | 14 |