英语词汇protective earthing device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	protective earthing device
释义	protective earthing device 简明释义保护接地装置网络释义 1 ?保护接地装置 ... 保护接地装置 protective earthing device 保护接地外绝缘 Protective earthing outer insulation 保护接地线 PEE ... 短语 1 protective e earthing device 保护接地装置双语例句 1 It is necessary to use two-stage selective earthing protective device in the power supply system of open-pits. 露天矿供电系统中采用两级选择性接地保护装置十分必要。
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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。