Pirogoff's angle

例句：

1. 1.The ship's captain was determined tofind the Pirogoff's anglebefore the storm hit.
   船长决心在暴风雨来临之前找到皮罗戈夫角。
2. 2.The astronaut used Pirogoff's angle to navigate through the densefog.
   宇航员利用皮罗戈夫角导航穿越浓雾。
3. 3. The scientist discovered anew phenomenon using Pirogoff'sangle, which could explain the mysterious disappearance of the planet.
   科学家利用皮罗戈夫角发现了一种新的现象，这可以解释这个星球神秘消失的原因。