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双重密封
| 电缆
| 封隔器
| 双重密封 | |
| el. | seal-on-seal |
| oil | double seal |
| 电缆 | |
| bridg.constr. | electric conductor |
| environ. | cable |
| geophys. | wireline |
| hydroel.st. | cable |
| IT | electric wire |
| space | electric cable |
| 封隔器 | |
| mining. | packer |
| |||
| seal-on-seal | |||
| double seal | |||
| double lip seal; dual-seal | |||
|
双重密封 : 2 phrases in 2 subjects |
| Mechanics | 1 |
| Technology | 1 |
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