| 单词 | top-hole |
| 释义 | top-hole in British Englishexclamation, adjective British informal excellent; splendid top-hole in American English (ˈtɑpˈhoʊl) adjective British, Slang first-rate top hole in the Oil and Gas Industry (tɒp hoʊl) Word forms: (regular plural) top holes noun Related wordsCompare top hole with intermediate section, which is the section of the borehole after the top hole, which has more consolidatedrock.(Extractive engineering: Field development, Drilling) A top hole is the first, shallow part of the borehole. The top hole is the topmost section of hole in drilling a well. For the top hole or very first section of the borehole, a base from which to commence drilling isrequired. A top hole is the first, shallow part of the borehole. Examples of 'top-hole' in a sentence |
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