网络与数据通信 协议体系与组成结构 释文 service user 服务用户
- Alfred Russel Wallace
- Alfred Schmidt
- Alfred Schutz
- Alfred Sisley
- Alfred Stieglitz
- Alfred Tarski
- Alfred Tennyson
- Alfred The Great
- Alfred the Great
- Alfred Vierkandt
- Alfred Vincent Kidder
- Alfred Weber
- Alfred Werner
- Alfred Wittenberg
- Alfred W.Purdy
- Alfred Y．Cho
- Al free quantum well laser diode
- Al-Fusus
- Alfven drift wave
- Alfven frequency
- Alfven Mach number
- Alfven number
- Alfven speed
- Alfven surface
- Alfven turbulence