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| 发动机质重量与功率之比; 质重量功率系数 | |||
| 重量功率比 | |||
| weight- to -power ratio: 15 phrases in 7 subjects |
| Automobiles | 3 |
| Aviation | 1 |
| Electric machinery | 2 |
| Nautical | 1 |
| Space | 3 |
| Technology | 2 |
| Wind Energy | 3 |
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