sound recording 录音 ; [电讯] 录声 ; 录音资料 ; 录成的音响
magnetic sound recording 磁录音 ; 磁性录音
magnetic sound recording film 磁性录音胶片 ; 磁录音影片
sound recording paper 声级记录纸
sound recording system 录声系统 ; 录音系统
film sound recording 电影录音 ; 影片录音 ; 录音
magnetic sound recording wire 磁性录音钢丝
optical sound recording 光学录声 ; [电影] 光学录音 ; 光学录声机
His inventions and innovations included batteries, cement mixer, the sound recording telephone, double- and multi-type cable system, railways used brakes.
他的发明和革新包括蓄电池、水泥搅拌机、录音电话、双工式和多工式电报系统、铁路用制动器等。
American inventor Thoms Edison, who was considered the father of sound recording, developed the phonograph in 1877, the first device to record music in the world.
被誉为录音之父的美国发明家托马斯·爱迪生于1877年发明了留声机，这是世界上第一台录音设备。
Sound recording is available as well, and you can even use the watch as a USB drive for portable storage that's always within reach.
录音也能用，你甚至可以把手表当做可以贴身的便携存储usb。
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