steam engine

详细解释:【化】 蒸汽机

英语解释：

名词 steam engine:

external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder

例句：

Although the engineer shoveled the coal in as fast as he could, the steam engine would go no faster.虽然火车司炉尽快地将煤铲进炉子，但火车一点也没加快。