single track operation

网络释义

1.	单线运转 http://www.... ... "单线运转"," Single line working" "单线运转"," Single track operation" "单线桥"," Single-track bridge" ... 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。