Similar to 三ツ矢サイダーショートストーリー_「キミの笑顔」

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Darwin Information Typing Architecture

Dasher (software)

Data Encryption Standard

German Equipment Works

Belyayev DB-LK

Dbx (noise reduction)

Douglas DC-1

Douglas DC-4E

Douglas DC-7

JNR Class DE10

DEC Alpha

DECnet

Der Deutsche Correspondent

57th NHK Kōhaku Uta Gassen