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Beginning
1
English
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1.1
Proper noun
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barrel process
1 language
Malagasy
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From Wiktionary, the free dictionary
English
[
edit
]
Proper noun
[
edit
]
barrel
process
(
metalworking
)
A process of
extracting
gold
or
silver
by treating the
ore
in a revolving barrel or
drum
, with
mercury
,
chlorine
,
cyanide
solution
, or other
reagent
.
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en:Metalworking
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barrel process
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