短語詞組短語position azimuth determination system 位置方位角測定系統(tǒng)Direct Position Determination 針對現(xiàn)有多源直接定位Relative position determination 相對位置確定present position determination mechanism 現(xiàn)在位置測定器train position determination 列車定位astronomic position determination 天文定位autonomous position determination 自主定位position determination method 定位方法position determination efficiency 位置探測效率 返回 position determination