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flashing-light : 50 phrases in 13 subjects |
| Automobiles | 2 |
| British usage, not spelling | 1 |
| Communications | 12 |
| Construction | 1 |
| Earth sciences | 4 |
| Electronics | 3 |
| Emergency medical care | 1 |
| General | 5 |
| Informal | 1 |
| Medical appliances | 2 |
| Optics branch of physics | 3 |
| Technology | 6 |
| Transport | 9 |