Other early instruments included the sextant and the astrolabe.
另外的早期仪器还有六分仪和星盘.
期刊摘选
Mariners were also able to fix their latitude , by using an instrument called an astrolabe.
海员们还可使用星盘这种仪器确定纬度.
辞典例句
Mariners were also able to fix their latitude by using an instrument called astrolabe.
海员们还可使用星盘这种仪器确定纬度。
辞典例句