His inventions and innovations included batteries, cement mixer, the soundrecording 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。
2
For years audiophiles have tried to persuade more casual music fans that a vinyl record played on a decent soundsystem sounds better than a digital recording played on the same system.