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| 小齿轮箱; 人字齿轮箱; 齿轮座; 齿轮机座 | |||
| 人字齿轮机座; 分速箱 | |||
| 小齿轮座; 小齿轮架; 齿轮机架 | |||
| pinion stand: 5 phrases in 3 subjects |
| Metallurgy | 3 |
| Steel production | 1 |
| Technology | 1 |
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