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| 曲线陡度 | |||
| 曲线斜率; 曲线斜度 | |||
| slope of curve: 8 phrases in 6 subjects |
| Agriculture | 1 |
| General | 1 |
| Refrigeration | 1 |
| Space | 1 |
| Technology | 3 |
| Wind Energy | 1 |
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