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单词 California-type dredge
释义 California-type dredge
[¦kal·ǝ¦fȯr·nyǝ ´tīp `drej]
MINING ENGINEERING
A single-lift dredge in which closely spaced buckets deliver to a trommel; oversize rocks are piled behind the dredge by a conveyor or stacker; the undersize are washed on gold-saving tables on the deck, and tailings discharge astern through sluices.
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