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| 发动机冷机低温运转 | |||
| 冷态运行 | |||
| 熔池快速凝结施焊; 小电流焊接; 小透熔焊接 | |||
| 冷滑 | |||
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| 冷滑 | |||
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cold running : 8 phrases in 3 subjects |
| Automobiles | 3 |
| Sports | 1 |
| Technology | 4 |
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