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| 主反馈 | |||
| 主馈〔电〕线; 干线 | |||
| 主进给 | |||
| 主馈线 | |||
| 主要原料 | |||
| 主馈电线 | |||
| 主输送; 主供应 | |||
| 主馈 | |||
| 主成圈系统; 主吃 | |||
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main feed : 20 phrases in 6 subjects |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Nuclear and fusion power | 1 |
| Refrigeration | 1 |
| Technology | 14 |
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