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| 电器触点间隙 | |||
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point gap : 12 phrases in 7 subjects |
| Automobiles | 3 |
| Drilling | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
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