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| watertightness test | |||
| waterproofness test; water test; water-tightness test | |||
| 水密性试验: 17 phrases in 7 subjects |
| Aviation | 1 |
| Chemistry | 1 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 9 |
| Technology | 3 |
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