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中央空调
| 系统
| 中央空调 | |
| busin. | central air conditioning |
| DPA系统 | |
| pest.contr. | DPA System |
| F系统 | |
| rem.sens. | F system |
| PELV系统 | |
| el.mach. | PELV system |
| SELV系统 | |
| el.mach. | SELV system |
| TN 系统 | |
| IT | TN system |
| TN-C 系统 | |
| IT | TN-C system |
| TN-C-S 系统 | |
| IT | TN-C-S system |
| TN-S 系统 | |
| IT | TN-S system |
| 系统 | |
| tech. | system |
| |||
| central air conditioning | |||
|
中央空调 : 9 phrases in 6 subjects |
| Aviation | 1 |
| Business | 2 |
| Electric machinery | 1 |
| Management | 1 |
| Refrigeration | 2 |
| Technology | 2 |
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