The motion of an object under the influence of gravity alone, there being neither thrust nor appreciable drag acting on it; the state of being in…
| 单词 | θ207154 |
| 释义 | society > travel > air or space travel > specific movements or positions of aircraft > aerodynamic forces and concepts > [noun] > free fall (2) free fall1851 The motion of an object under the influence of gravity alone, there being neither thrust nor appreciable drag acting on it; the state of being in… free flight1891 The unrestrained flight of a balloon, glider, etc., that is not moored or being towed. |
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