SWIU foundation
Monday, May 7, 2012
地平線5公里
站在地面(一般平地)的话 则为(6800.0018)^2-(6800)^2=24.5 24.5开根号则不到5(公里)
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment