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| use of fire and electric power | |||
| 用火用电: 13 phrases in 8 subjects |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Household appliances | 1 |
| Shipbuilding | 1 |
| Space | 3 |
| Technology | 3 |
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