A determination of one's position made by taking bearings at different times and allowing for the distance covered in the interval.
A determination of one's position made by taking bearings at different times and allowing for the distance covered in the meantime.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。