| 释义 |
dead reckoningn.（名词）- Abbr. DRA method of estimating the position of an aircraft or a ship without astronomical observations, as by applying to a previously determined position the course and distance traveled since.缩写 DR船位推测法：一种推测飞机或船的位置的方法，不借助天文观察仪器，而通过从航行的方向和距离的精确位置来推算
- Predictive calculation based on inference; guesswork.推算；猜测：在推论基础上的论断性的计算；猜测
- Possibly alteration of ded. 可能为 ded.的变化
- abbr. of deduced deduced的缩写
- from deduce [to trace from the beginning] * see deduce 源自 deduce [由开始探索] * 参见 deduce
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