downhole

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Located in the drilled bore of an oil well either underground or undersea.
    — In the work over, part of the new "string" was a down-hole titanium gauge.

词形变化

down-hole alternative downholes plural down-hole alternative

词源

词源 1
Etymology tree
English down-
Proto-Germanic *hulaz
Proto-Germanic *hulą
Proto-West Germanic *hol
Old English hol
Middle English hole
English hole
English downhole
From down- + hole.
词源 2
Etymology tree
English down-
Proto-Germanic *hulaz
Proto-Germanic *hulą
Proto-West Germanic *hol
Old English hol
Middle English hole
English hole
English downhole
From down- + hole.
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