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| 经钢板弹簧传递的牵引力; 弹簧压推力 | |||
| 弹簧推力 | |||
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spring thrust : 16 phrases in 4 subjects |
| Automobiles | 3 |
| Electric machinery | 7 |
| Hydroelectric power stations | 1 |
| Technology | 5 |
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