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| описание рабочих операций | |||
| руководство по оперативной работе | |||
| объявление операции | |||
| инструкция по эксплуатации; описание работы | |||
| 操作说明: 5 phrases in 3 subjects |
| General | 1 |
| Oil and gas | 3 |
| Technology | 1 |
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