Kepler's laws
Kepler's laws
1. three theorems describing orbital motion. The first law states that planets move in elliptical orbits with the sun at one focus. The second states that the radius vector of a planet sweeps out equal areas in equal times. The third law relates the distances of the planets from the sun to their orbital periods
• 开普勒定律
| Keplers | 包含 | 前缀 | 后缀 | 任意 | 例句 |
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| laws | 包含 | 前缀 | 后缀 | 任意 | 例句 |
| \ | 3个字母 | 4个字母 | ||||
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