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| 线性变量 | |||
| 线性变异 | |||
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Linear variable : 33 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Business | 1 |
| Earth sciences | 2 |
| Electricity | 1 |
| Electronics | 5 |
| Engineering geology | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 1 |
| Radio | 1 |
| Space | 1 |
| Technology | 13 |