Similar to 半環

AARP

ABB

A Course in Miracles

American Forces Network

Federal Ministry for Economic Cooperation and Development

AGH University of Krakow

AK-47

Apache Subversion

ARM architecture family

ASTM International

Association for the Taxation of Financial Transactions and for Citizens' Action

AWK

Computer-aided engineering

Chemical Abstracts Service

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Vladimir Arnold

Niels Henrik Abel

Abelian group

12th SS Panzer Division Hitlerjugend

10th century

11th century