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| экспериментальная операция | |||
| опытная эксплуатация | |||
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试验操作 : 16 phrases in 6 subjects |
| Automobiles | 1 |
| Electronics | 3 |
| General | 2 |
| Geology | 1 |
| Polymers | 1 |
| Technology | 8 |
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