Route card
A route card is a document that is used by hillwalkers as an aid to navigation and route planning. The military also use a similar technique for planning night marches and/or patrols.
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依恋情感网英汉例句词典收录3870147条英语例句词条，基本涵盖了全部常用英语单词的释义及例句，是英语学习的有利工具。