短語詞組短語microwave position -fixing 微波定位position -fixing of human eyes 人眼定位electronic position -fixing system 電子定位系統(tǒng)sea -bed acoustic position-fixing 海底聲納定位polar -coordinate position-fixing system 極坐標定位系統(tǒng)position fixing for rotor 轉子定位 返回 position fixing