详细解释:【机】 蒸汽机车
英语解释：
名词 steam locomotive:
a locomotive powered by a steam engine例句：
The first steam locomotive, introduced in1825, had a top speed of only thirteen mph, and the great sailing ships of the time laboured a long at less than half that speed.1825年推出的第十辆蒸汽机最大速度每小时仅为13英里，而那时的大帆船行驶得更慢，还不到这个速度的一半。