英语词汇pstn firewall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	pstn firewall
释义	pstn firewall 简明释义电话网防火墙专业释义 1 电子、通信与自动控制技术电话网防火墙
随便看	operation principle operation principles operation procedure operation process operation process chart operation processing operation profile operation program operation protocol operation protocol data unit operation range operation rate operation rate of machinery operation ratio operation rationalization operation readiness review operation record operation recorder operation redundancy operation reflector lamp operation region operation register operation regulation operation regulation operation reliability

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。