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| 弓形板弹簧见 GB/T 1805-2001 中 2.3.1 | |||
| 半椭圆形弹簧; 弓形弹簧 | |||
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semi-elliptic spring : 7 phrases in 2 subjects |
| Automobiles | 4 |
| Technology | 3 |
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