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| 售后服务服务周期间隔; 维护保养周期间隔 | |||
| 服务范围; 维修间隔 | |||
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service interval : 8 phrases in 6 subjects |
| Animal husbandry | 1 |
| Economy | 1 |
| Information technology | 1 |
| Reproductive biology | 1 |
| Telecommunications | 2 |
| Textile industry | 2 |
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