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| 21. | single story heating system |
| 层别供热系统 |
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| 22. | ceiling panel heating |
| 顶棚板面供热 |
|
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| 23. | electric heating system |
| 电力供热系统 |
|
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| 24. | gravity flow heating system |
| 自两供热系统 |
|
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| 25. | hot water heating system |
| 热水供热系统 |
|
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| 26. | overhead heating system |
| 上分式供热系统 |
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| 27. | sub atmospheric heating system |
| 真空供热系统 |
|
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| 28. | multiple row heating coi |
| 多行供热盘管 |
|
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| 29. | oil fired heating system |
| 烧油供热系统 |
|
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| 30. | cooling and heating unit |
| 供冷供热装置 |
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