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| champ de référence (A field that is associated with another field so that their properties always match. If the properties in one field are changed, the properties in the other field are updated automatically) | |||
| zone de référence | |||
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reference field : 7 短语, 5 学科 |
| 信息技术 | 2 |
| 天线和波导 | 1 |
| 建造 | 1 |
| 技术 | 1 |
| 收音机 | 2 |