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| 齿顶半径; 拱坝曲率半径; 最大半径 | |||
| 螺齿顶半径 | |||
| 坝顶曲线半径 | |||
| crest radius: 6 phrases in 3 subjects |
| Automobiles | 1 |
| Hydroelectric power stations | 2 |
| Technology | 3 |
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