经线

From Wikipedia, the free encyclopedia

Remove ads

经线阿称子午线,搭纬线一样是人类为度量而假设出来个辅助线,定义为地球表面连接南北两极个大圆线高头个半圆弧。

Loading related searches...

Wikiwand - on

Seamless Wikipedia browsing. On steroids.

Remove ads