angular altitude造句

例句与造句

1. From any point in the Northern Hemisphere the direction to Polaris is always north and its angular altitude is roughly equal to the latitude.
2. Mathematical calculations on time, rate of ascent, azimuth and angular altitude can produce good estimates of wind speed and direction at various altitudes.
3. Smiley led expeditions to South America, Canada, Asia, and the US to study solar eclipses, and conducted several expeditions between 1947 and 1952 to study  atmospheric refraction at low angular altitudes .  He also studied the Mayan calendar, and  was able to date the Mayan Codices of Dresden, Paris, and Madrid from astronomical dates which they contained . 
4. It's difficult to find angular altitude in a sentence. 用angular altitude造句挺难的