grasshopper beam engine造句

Grasshopper beam engines were beam engines pivoted at one end, the long horizontal arm resembling the hind leg of a grasshopper.
Like the smaller grasshopper beam engines, an advantage for Maudslay's table engines was that they could be made in factories as a complete unit.
Mendham had a mill in 1086, although the present building was constructed in 1807, and was extended in 1871, when a grasshopper beam engine was installed to supplement the water wheel, which only had a fall of, when water levels were low.
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