By this time three more Jumbos had been added to the plant. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
The necessary steam boilers were accommodated in the basement, while the second floor was occupied by six generators of 125 horse-power each, nicknamed Jumbos. 佚名.神奇的知识之书.
All the Jumbos were ruined, excepting No. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
At the station at Milan, Italy, the first 'Jumbos' operated in multiple arc were driven by Porter-Allen engines, and dash-pots were applied to the governors. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.