| 双层船 double-decker | | 双层船底 double bottom | | 双层车体 double-deck bus body | | 双层轮胎 two ply tyre | | 双层透镜 double-layer lens | | 双层门 two storied gate | | 双层面纱 yashmak | | 双层黄金市场 two-tier gold market | | 双峰驼 two-humped camel | | 双峰骆驼 a Bactrian camel | | 双工 duplex operation | | 双工传真机 duplex facsimile equipment | | 双工传输 duplex transmission | | 双工信道 duplex channel | | 双工制 duplex system | | 双工发送 duplex transmission | | 双工接收 double reception | | 双工控制 duplex control | | 双工电报 duplex telegraph | | 双工电路 duplicate circuitry | | 双工计算机 duplex computer | | 双幅 double width | | 双幅斗 double-margined door | | 双幅绸子 two widths of silk | | 双幻核 double-magic nucleus |
| | 双幻核元素 double-magic element | | 双座 two-seater | | 双座小汽车 voiturette | | 双座敞蓬轿车 roadster | | 双座椅 love seat | | 双座歼击机 two seat fighter | | 双座轿车 grand touring car | | 双座飞机 two-seater plane | | 双座高速敞篷汽车 speedster | | 双开道岔 double turnout | | 双式帐簿 double-entry bookkeeping | | 双引号 double quotation marks | | 双引擎飞机 twin-motored plane | | 双弯头 double bend | | 双态 bifurcation | | 双态元件 binary element | | 双态变数 binary-state variable | | 双态操作 biconditional operation | | 双态电路 two-state circuit | | 双态装置 two-state device | | 双态语句 biconditional statement | | 双态通信 binary signalling | | 双户住宅 two-family house | | 双手 both hands | | 双手加额 place one's hands together a... |
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