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Beginning
1
English
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1.1
Noun
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top drive
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Malagasy
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From Wiktionary, the free dictionary
English
[
edit
]
Noun
[
edit
]
top
drive
(
plural
top drives
)
(
oil industry
)
A
mechanical
device
on a
drilling rig
that
provides
clockwise
torque
to the
drill string
to
drill
a
borehole
.
Retrieved from "
https://en.wiktionary.org/w/index.php?title=top_drive&oldid=82542765
"
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en:Oil industry
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