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| 气密性 | |||
| 密闭; 气密 | |||
| 气密性 | |||
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| 不漏气性 | |||
| 气密性 | |||
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air tightness : 14 phrases in 7 subjects |
| Aviation | 1 |
| Electric machinery | 1 |
| Oil / petroleum | 2 |
| Rail transport | 3 |
| Shipbuilding | 3 |
| Space | 1 |
| Technology | 3 |
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