當年野外勘察也遇到過這樣的事。依據對地形、地勢、野外方向判別的知識找到路走出來的。

來源: 信筆由墨於 2021-11-27 06:28:42 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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