短語詞組短語Defense Satellite Communications System 防衛(wèi)星通信系統(tǒng);防禦星通信系統(tǒng)DSCS Defense Satellite Communications System 國防衛(wèi)星通信系統(tǒng)DCS Defense Communications System 國防部通信系統(tǒng)DCCS Defense Communications Control System 防禦通信控制系統(tǒng) 返回 defense communications system