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| safety critical parts | |||
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| vital part | |||
| heavy-duty part (напр., оборудования, конструкции) | |||
| a critical part; an important part | |||
| vital part (машины) | |||
| critical part (отказ которой нарушает работу всей системы) | |||
| principal parts; essentials | |||
| critical part; essential part; performance part | |||
| strength member | |||
| ответственные детали: 5 phrases in 2 subjects |
| Public utilities | 1 |
| Technology | 4 |