英语词汇national switching network怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	national switching network
释义	national switching network 简明释义国内交换网络网络释义 1 ?国内交换网络美国国家科学基金会 National Science Foundation (NSF) 国内交换网络 national switching network (美国)国家电视委统委员会 National Television System Committee (NTSC) ..
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英汉双解词典包含3185865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。