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| 波纹管式密封件 | |||
| 波纹管密封 | |||
| 皮腔式密封; 膜盒密封; 波形密封; 波纹管式密封 | |||
| bellows seal: 13 phrases in 5 subjects |
| Chemistry | 1 |
| Electronics | 2 |
| Hydroelectric power stations | 3 |
| Oil / petroleum | 2 |
| Technology | 5 |
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