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| electric illumination; electric lighting | |||
| electrical illumination; electrical lighting | |||
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电力 照明 : 10 phrases in 7 subjects |
| Drilling | 1 |
| Earth sciences | 1 |
| Economy | 1 |
| General | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Technology | 4 |
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