我参与过两次路线测量，那时候GPS还不普及，现在的技术条件下应该容易许多

来源: coach1960 于 2022-06-06 15:21:35 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.