The most wonderful piece of machinery on show was Nasmyth's steam hammer.
其中最奇妙的是内史密斯的蒸汽锤。
经济学人-综合
Some towns cannot be preserved. Save their inhabitants instead IN THEIR day they were the engines of the world economy, noisy with steam hammers and black with soot.
A steam hammer is a power hammer driven by steam. It is used for tasks such as shaping forgings and driving piles. Typically the hammer is attached to a piston that slides within a fixed cylinder, but in some designs the hammer is attached to a cylinder that slides along a fixed piston.