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| испытание на усталость при повторных ударах | |||
| испытание на циклический удар | |||
| испытание на повторный удар | |||
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反复冲 击 试验 : 4 phrases in 3 subjects |
| Electronics | 1 |
| Metallurgy | 1 |
| Oil processing plants | 2 |
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