downhole.
/doun-hohl/US // ˈdaʊnˌhoʊl //UK // (ˈdaʊnˌhəʊl) //
井下,井下的,井下作业,井底
Definitions
n.noun · 名词
- 1.
- ›a hole dug or drilled downward, as in a mine or a petroleum or gas well.
adj.adjective · 形容词
- 1.
- ›occurring or situated in such a hole.
Level 4More words in d →