欠载断路器 underload circuit-breaker
欠载继电器 underload relay
欠载开关 underload switch
下置式冰箱 underlying refrigerator
衬裤 underpants
下投梭织机 underpick loom
欠功率继电器 under-power relay
旗袍衬衫 under-robe
海底光缆 undersea fiber-optic cable
海底光纤连接器 undersea fiber-optic connector
海底光缆 undersea lightwave cable
汗衫 undershirt
欠载继电器 underload relay
欠载开关 underload switch
下置式冰箱 underlying refrigerator
衬裤 underpants
下投梭织机 underpick loom
欠功率继电器 under-power relay
旗袍衬衫 under-robe
海底光缆 undersea fiber-optic cable
海底光纤连接器 undersea fiber-optic connector
海底光缆 undersea lightwave cable
汗衫 undershirt
松紧短衬裤 undershorts
衬裙 underskirt
悬臂式加料吊车 underslung charging crane
悬挂式运输机 underslung conveyer
长行程发动机 undersquare engine
妇女内衣裤 underthings
低捻纱 undertwisted yarn
欠压断路器 under-voltage circuit breaker
欠压开相继电器 under-voltage open phase relay
欠压继电器 under-voltage relay
欠压释放器 under-voltage release
欠压反相继电器 under-voltage reverse phase relay
水声通信机 underwater acoustic communication apparatus
水声测量仪 underwater acoustic measuring instrument
水声遥测计 underwater acoustic telemeter
水声换能器 underwater acoustic transducer
水下施工防锈涂料 underwater applicable anti-corrosive coating
水下施工防污涂料 underwater applicable anti-fouling paint
水下诱鱼灯 underwater attracting fish lamp
水下光缆 underwater cable
水下摄影机 underwater camera
水下罗盘 underwater compass
水下连接器 underwater connector
水下电声传感器 underwater electroacoustic transducer
水下抢修工程船 underwater emergency repair engineering vessel
水下γ射线光谱仪 underwater gamma spectrometer
水下打桩机 underwater hammer
水下激光器 underwater laser
水下激光雷达 underwater laser radar
水下磁性探雷器 underwater magnetic minedetector