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| slot line; grooved wire | |||
| slotted line | |||
| 开槽 线: 14 phrases in 8 subjects |
| Air defense | 1 |
| Electric machinery | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Space | 4 |
| Technology | 4 |
| Telecommunications | 1 |
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