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| 中心角 (angulus centralis) | |||
| 圆心中心角; 中圆心角 | |||
| 圆心角; 中心角 | |||
| 圆〔中〕心角 | |||
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central angle : 11 phrases in 5 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 4 |
| Plastics | 1 |
| Space | 2 |
| Technology | 2 |
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