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airtight test
| of
| piping
| airtight test | |
| auto. | 气密性检验 |
| of | |
| gen. | 的; …的; 关于 …的; …做成 的; 对…; … 的 |
| piping | |
| hydroel.st. | 管道系统 |
| |||
| 气密性检验 | |||
| 气密试验 | |||
|
airtight test of piping : 2 phrases in 2 subjects |
| Aviation | 1 |
| Shipbuilding | 1 |
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