He apparently told the press that he sketched every detail of his Ferris wheel over a dinner at a Chicago chophouse, and no detail needed changing in its execution.
Press the differential towards the transmission cover at the crown wheel adjusting tool and read off the backlash on the dial gauge.
将差速器向盆形齿轮调整工具处的变速器盖方向压，然后读取百分表上的间隙值。
3
When you think about inventions that have radically changed human existence, what comes to mind? Probably the wheel, the printing press, maybe the refrigerator and definitely personal computers.