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| 节约〔热，油，氧〕器; 燃料节省器; 加温器; 废气预〔节〕热器; 节俭者 | |||
| 化油器省油器; 加浓装置; 节约热，油，氧器 | |||
| 降压变压器 | |||
| 燃料系统的节油器 | |||
| 废热锅炉 | |||
| 经济器 | |||
| 废热预热器; 节煤/油器 | |||
| 经济至上者; 节俭的人; 节省燃料和原材料的装置 | |||
| 节约装置; 节能热、油、煤器; 电极孔水套 | |||
| 节热 器; 节煤器; 节能器; 节约器; 省煤器 | |||
| 废气预热器 | |||
| 节油器; 节热器; 氧气系统的节氧器 | |||
| 炉水预热器; 省热器; 省油 〔煤，热〕器 | |||
| 省油器 | |||
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| 省煤器 | |||
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economizer : 86 phrases in 12 subjects |
| Automobiles | 5 |
| Aviation | 1 |
| Chemistry | 1 |
| Compressors | 1 |
| Electronics | 4 |
| Metallurgy | 4 |
| Nautical | 4 |
| Oil / petroleum | 6 |
| Refrigeration | 13 |
| Shipbuilding | 12 |
| Technology | 33 |
| Textile industry | 2 |
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