noun🔗Share测地线, 短程线. The shortest line between two points on a specific surface."The shortest route between my house and the school follows the geodesics of the Earth's curved surface. "我家到学校的最短路线沿着地球曲面上的测地线，也就是曲面上的最短路径。mathphysicsgeologygeographyastronomyChat with AIVocabulary GamePractice Reading
noun🔗Share大地线，短程线. (spherical geometry) A segment of a great circle."To fly the shortest path on Earth, airplanes often follow geodesics because the Earth is a sphere, not a flat surface. "为了在地球上飞最短的航线，飞机通常沿着大地线飞行，因为地球是球体，而不是平面。mathChat with AIVocabulary GamePractice Reading
noun🔗Share测地线，短程线. A course allowing the parallel-transport of vectors along a course that causes tangent vectors to remain tangent vectors throughout that course (a straight curve, a line that is straight)."Sentence: "Because the shortest paths on the curved surface of the Earth are geodesics, airplanes often fly routes that appear curved on a flat map." "由于地球曲面上的最短路径是测地线 (也就是弯曲空间中的“直线”)，所以飞机经常飞行的航线在平面地图上看起来是弯曲的。mathphysicsChat with AIVocabulary GamePractice Reading
