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| 扩散板; 配流板 | |||
| 扩压板 | |||
| 导流板 | |||
| 流量分配板 | |||
| 扩散掺气板; 空气扩散板 | |||
| diffuser plate: 5 phrases in 3 subjects |
| Ecology | 1 |
| Refrigeration | 1 |
| Technology | 3 |
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