master control
Network operations center
Central apparatus room
Transmission control room
/suto3/google.iconmaster control
/suto3/Google画像検索.iconmaster control
/suto3/Google定義検索.icon master control
/suto3/wikipedia.iconmaster control
/suto3/weblio.icon master control
/suto3/kotobank.icon master control
/suto3/jisho.icon master control