网络与数据通信 协议体系与组成结构 释文 service data unit, SDU 服务数据单元
- auditory tube
- audit report
- audit sampling
- audit service
- audit tests
- audit trail
- Audrey Flack
- Audrey Hepburn
- Audrey Tautou
- Audrey Thomas
- Audéoud Mission
- Auer Leopold
- auerlite
- Auezov Muhtar
- Aufbau principle
- aufbau principle
- aufbau principle; building-up principle
- aufheben
- aufhellung
- augelite
- augend
- Auger chemical effect
- Auger chemical shift
- Auger depth profiling
- Auger depth resolution