(a) the rate at which a mine shaft is excavated (now rare); (b) the speed with which a body sinks or is sinking; esp. the rate at which a glider…
| 单词 | θ108660 |
| 释义 | the world > movement > motion in a certain direction > downward motion > [noun] > downward component of gliding (1) sinking speed1860 (a) the rate at which a mine shaft is excavated (now rare); (b) the speed with which a body sinks or is sinking; esp. the rate at which a glider… |
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