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| 起动机拨叉弹簧 | |||
| 杠杆式弹簧 | |||
| 控制杆弹簧 | |||
| lever spring: 30 phrases in 4 subjects |
| Computer numerical control | 1 |
| Shipbuilding | 3 |
| Technology | 25 |
| Textile industry | 1 |
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