direct reading theodolite

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1.	直读经纬仪 36测量学_馆档网 ... "正镜读数"," direct reading" "直读经纬仪"," direct reading theodolite" "往测"," direct run" ... www.guandang.com

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英汉双解词典包含2704715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。