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| оперативные часы | |||
| операционноеоперативное время | |||
| операционное время; оперативное время | |||
| 作业时间: 32 phrases in 10 subjects |
| Business | 1 |
| Drilling | 1 |
| Education | 3 |
| Electronics | 1 |
| Environment | 1 |
| General | 18 |
| Information technology | 1 |
| Military | 1 |
| Quality control and standards | 1 |
| Technology | 4 |
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