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| bilayer membrane | |||
| double membrane | |||
| double layer coating; duplex film | |||
| 双 层 膜: 24 phrases in 9 subjects |
| Chemistry | 1 |
| Electronics | 3 |
| Oil processing plants | 1 |
| Plastics | 8 |
| Polygraphy | 1 |
| Polymers | 5 |
| Space | 1 |
| Technology | 3 |
| Water resources | 1 |
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