So, John Henry was a steel driver; he used a hammer to put in rail spikes.
所以, 约翰·亨利是个铁杆司机;他用锤子装上了铁轨道钉。
英语百科
Rail fastening system
(重定向自Rail Spike)
A rail fastening system is a means of fixing rails to railroad ties (United States) or sleepers (international). The terms rail anchors, tie plates, chairs and track fasteners are used to refer to parts or all of a rail fastening system. Various types of fastening have been used over the years.