工学 【复用概念】 释 synchronous digital hierarchy，SDH 同步数字体系 基于同步复用技术的数字复用体系。
网络与数据通信 协议体系与组成结构 释文 synchronous digital hierarchy, SDH 同步数字体系
- Agronomy Journal
- Agronomy Society of New Zealand, ASNZ
- agrophysics
- agrose gel electrophoresis
- agrotechnical economics
- a grotesque stone and sporadic mume twigs in the wild
- A. Grothendieck
- A. Grothendieck (1928—2014)
- agrotopo-climate
- agro-tourism
- A Group of Immortals Offer Birthday Congratulations
- a group socialization theory of development
- AGROVOC
- AGS
- AG/SAG-ball mill-crushing and classification circuit
- AG/SAG-ball mill grinding-classification circuit
- AG/SAG grinding-classification circuit
- AGU
- Aguacalientes，Estado de
- Aguadilla
- Aguascalientes
- aguatie green manure
- Agudunba, story of
- Agui
- A Guidance on Photography