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| 关节接头波纹套 | |||
| joint bellows: 20 phrases in 8 subjects |
| Compressors | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Oil / petroleum | 3 |
| Refrigeration | 1 |
| Shipbuilding | 1 |
| Technology | 11 |
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