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1. | Hesser's variation |
| 海塞尔变化 |
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2. | amplitude variation |
| 幅度变化|波辐变化 |
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3. | altitude variation |
| 高度变化 |
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4. | rhythmic variation |
| 节律变化 |
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5. | delay variation |
| 延迟变化 |
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6. | color variation |
| 色调变化 |
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7. | spelling variation |
| 拼法变化 |
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8. | sidereal variation |
| 恒星变化 |
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9. | random variation |
| 随机变化 |
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10. | polar variation |
| 极变化 |
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