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| water sealed gland | |||
| watertight gland | |||
| water seal gland | |||
| hydraulic gland; water-sealed gland | |||
| 水封套: 13 phrases in 5 subjects |
| Business | 1 |
| Drilling | 6 |
| General | 1 |
| Hydroelectric power stations | 2 |
| Technology | 3 |
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