 |
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Battery Operated : 83 phrases in 28 subjects |
| Astronautics | 1 |
| Automated equipment | 2 |
| Automobiles | 1 |
| Computers | 1 |
| Electrical engineering | 1 |
| Electronics | 4 |
| Energy industry | 2 |
| Euphemistic | 1 |
| General | 2 |
| Gyroscopes | 1 |
| Information technology | 4 |
| Lasers | 1 |
| Medical | 3 |
| Metrology | 2 |
| Military | 2 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear and fusion power | 1 |
| Public utilities | 1 |
| Quantum electronics | 1 |
| Radio | 3 |
| Radioengineering | 5 |
| Seismology | 3 |
| Space | 4 |
| Technology | 13 |
| Telephony | 1 |
| Traffic control | 1 |
| Transport | 20 |