双户住宅 two family house

独户和双户住宅 one-and two-family dwelling

双户住宅区 two family residential district

双户型 Twin Key

双栏分类帐户 double column ledger account

双房间一户住宅 two room dwelling

双用户线 two-party line

双边闭合用户群 bilateral closed user group

用户线双向增音机 subscriber line two-way repeater

双栏帐户 Double column ledger ; double column ledger account