短語詞組短語bubble sextant [水運(yùn)]氣泡六分儀;水泡六分儀pendulum sextant 鎚擺水準(zhǔn)六分儀;[水運(yùn)]擺式六分儀periscopic sextant 潛望六分儀;[航][軍][船]潛望鏡六分儀sextant reading 六分儀讀數(shù)sextant observation 六分儀測量gyro sextant 陀螺六分儀;廻轉(zhuǎn)六分儀surveying sextant 測量六分儀;水道測量六分儀double sextant 雙重六分儀;雙測量六分儀hydrographic sextant 航道測量六分儀;水道測量用六分儀gyroscope sextant [航][水運(yùn)]陀螺六分儀 返回 sextant