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| triangular velocity | |||
| 三角 形速度: 15 phrases in 8 subjects |
| Armored vehicles | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Electric machinery | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 5 |
| Wind Energy | 2 |
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