网络与数据通信 网络管理与安全 释文 privacy enhanced mail, PEM 保密增强邮件
- electrification in thunderclouds
- electrification mileage
- electrified body
- electrified body, charged body
- electrify
- electrino
- electrion
- electrization
- electro-absorption modulator
- electroabsorption modulator
- electroacoustic
- electroacoustical
- electroacoustical reciprocity theorem
- electroacoustic metrology
- electro-acoustic reciprocity
- electroacoustic reciprocity principle
- electro-acoustics
- electroacoustics
- electroacoustic transducer
- electroacoustic wave
- electro-active polymer
- electroactive polymer
- electroactive polymer actuation
- electroactive substance
- electroacupuncture apparatus