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| 钢金属丝弹簧 | |||
| 钢丝弹簧 | |||
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wire spring : 26 phrases in 5 subjects |
| Automobiles | 1 |
| Compressors | 1 |
| Metallurgy | 17 |
| Polygraphy | 1 |
| Technology | 6 |
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