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| infrared rays survey | |||
| infrared measurement | |||
| 红外线 测量: 11 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 2 |
| Earth sciences | 4 |
| General | 1 |
| Rail transport | 1 |
| Shipbuilding | 1 |
| Sports | 1 |
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