downhole
/doun-hohl/US // ˈdaʊnˌhoʊl //UK // (ˈdaʊnˌhəʊl) //
井下,井下的,井下作业,井底
Definitions
n.名词 noun
- 1
- : a hole dug or drilled downward, as in a mine or a petroleum or gas well.
adj.形容词 adjective
- 1
- : occurring or situated in such a hole.
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