closed degassing system

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1.	闭式除气系统石油英语词汇(C3) ... closed cycle 闭路循环 closed degassing system 闭式除气系统 closed depression 封闭洼地 ... www.diyifanwen.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。