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| 双铰接头; 双万向节 | |||
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dual joint : 14 phrases in 7 subjects |
| Air defense | 1 |
| Automobiles | 5 |
| Earth sciences | 1 |
| Electronics | 1 |
| Oil / petroleum | 3 |
| Plastics | 2 |
| Technology | 1 |
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