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| multi-directional ceiling | |||
| air radiator; diffuser; air diffuser | |||
| 散流器: 67 phrases in 8 subjects |
| Architecture | 1 |
| Automobiles | 6 |
| Electronics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Refrigeration | 19 |
| Space | 1 |
| Technology | 36 |
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