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a type of clock that works using a swinging weight at the end of a straight line
摆钟, 摆
a detachable lock with a hinged or sliding shackle that can be passed through an opening and then secured shut, typically used to secure doors, gates, lockers, or containers
挂锁, 扣锁
a rounded glass that is inside an electric lamp and from which light shines
灯泡, 电灯泡
the flow of electric charge through a conductor or circuit
电流, 电的流动
a machine that uses steam made from boiling water to produce power and make parts move
蒸汽机, 蒸汽发动机
the devices used to see distant objects more clearly by looking through two small telescopes mounted together
双筒望远镜
a shaped piece of glass or plastic that refracts light to form images, commonly used in cameras, microscopes, eyeglasses, and telescopes
镜头, 透镜
a display by which the user can interact with a computer, smartphone, etc. by touching its surface
触摸屏, 触控屏幕
a device used for storing and retrieving digital information, which uses rapidly rotating disks to read and write data
硬盘, 硬碟
(in electronic devices such as computers, etc.) the main printed circuit board that makes it possible for all the parts of a computer to communicate
主板, 母板
a mechanical tool or an electronic device that is useful for doing something
小工具, 装置
the quality or the act of receiving radio, television or cellphone signals
接收, 接收质量
a device that uses GPS technology and satellite signals to help drivers navigate to their destination by providing them with real-time information about their location and route
卫星导航, 卫星导航系统
a device placed in or on the ear that delivers sound, commonly used with phones, radios, hearing aids, or communication systems
耳塞, 耳机
a plastic card embedded with a microchip that can store and process data securely, used for identification, authentication, data storage, and application processing
智能卡, 芯片卡
a device consisted of two or three metal pins that can connect a piece of electrical equipment to a power supply when fitted into the holes of an electric outlet
插头, 插销
a portable electric light source, typically powered by batteries, used to illuminate dark areas
手电筒, 电筒
an instrument that makes looking at tiny objects or organisms possible by enlarging them which is useful in scientific studies
显微镜, 双目放大镜
| 剑桥英语：CAE（C1高级） |
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