The action of escaping from the region where the gravitational force of a planet is predominant. Usually attributive. (See compounds below.)
| 单词 | θ207488 |
| 释义 | society > travel > air or space travel > space flight > [noun] > a space shot or flight > course or trajectory of spacecraft > escape from gravity field of planet (2) escape1947 The action of escaping from the region where the gravitational force of a planet is predominant. Usually attributive. (See compounds below.) Subcategories:— speed sufficient for (1) |
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