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| 膜式填料 | |||
| 薄膜式淋水填料 | |||
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| 软片包; 胶片剂量计 | |||
| 一步摄影胶片; 波拉片 | |||
| 胶片包装; 摄影暗盒 | |||
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film packing : 11 phrases in 6 subjects |
| Chemistry | 1 |
| Oil / petroleum | 1 |
| Packaging | 2 |
| Plastics | 2 |
| Polymers | 1 |
| Technology | 4 |
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