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| packed bed | |||
| packing layer | |||
| filler layer | |||
| filter pack | |||
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| filler coat | |||
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| filler layer | |||
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填料层 : 25 phrases in 9 subjects |
| Architecture | 1 |
| Chemistry | 2 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Nautical | 2 |
| Oil / petroleum | 1 |
| Technology | 14 |
| Textile industry | 1 |
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