| 单词 | trajectory |
| 释义 | trajectory n. (pl. -ies) 1. the path described by a projectile flying or an object moving under the action of given forces. 2. Geom. a curve or surface cutting a system of curves or surfaces at a constant angle. Etymology: (orig. adj.) f. med.L trajectorius f. L traicere traject- (as TRANS-, jacere throw) |
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