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| orbital electrons | |||
| orbital electron; planetary electron | |||
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轨道 电子 : 28 phrases in 10 subjects |
| Aviation | 3 |
| Earth sciences | 2 |
| Electronics | 4 |
| General | 2 |
| Health care | 1 |
| Metallurgy | 4 |
| Physics | 1 |
| Shipbuilding | 2 |
| Space | 4 |
| Technology | 5 |
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