arrangements for prevention of eavesdropping for intransmitters,receivers,complete sets是什么意思、英文翻译及中文
arrangementsforpreventionofeavesdroppingforintransmitters,receivers,completesets词语：arrangementsforpreventionofeavesdroppingforintransmitters,receivers,completesets解释：电话机，发送者为防止窃听的措施，受话...