DICT.TW Dictionary Taiwan

 Flash, n.
 1. A pool. [Prov. Eng.]
 2. Engineering A reservoir and sluiceway beside a navigable stream, just above a shoal, so that the stream may pour in water as boats pass, and thus bear them over the shoal.
 Flash wheel Mech., a paddle wheel made to revolve in a breast or curved water way, by which water is lifted from the lower to the higher level.
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