directed line segment

网络释义

1.	有向线段英语词汇-数学词汇_专业词汇 ... directed line 有向直线 directed line segment 有向线段 directed number 有向数 ... e.3edu.net

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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。