The weight that drops in a pile driver or steam hammer.
撞键打舂机或汽棰内落下的重物。
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。
Separation of condensate in front of steam using equipment to prevent water hammer.
在用汽设备前端，分离冷凝水防止水击现象产生。
The steam trap is rationally arranged to avoid the water hammer.
合理布置疏水装置，避免水击的出现。
The steam trap is rationally arranged to avoid the water hammer.
合理布置疏水装置，避免水击的出现。
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