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guide ring
释义
guide ring
guide ring
[
′gīd ‚riŋ
]
(mining engineering)
A longitudinally grooved, annular ring made almost full borehole size, which is fitted to an extension coupling between the core barrel and the first drill rod.
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cfipt
cfir
cfirc
cfire
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c-fis
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cfisd
cfisig
cfi-sp
cfissa
cfisu
cfit
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cfitsio
cfitt
cfitu
cfiu
cfius
cfivac
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更新时间:2026/7/14 3:54:10