 |
| English | Russian |
| exploratory drill hole | разведочная скважина (на нефть, природный газ: We've drilled 15 exploratory holes at the site of a proposed mine.) |
| side drill hole | боковое сверление |
|
| English | Russian |
| exploratory drill hole | разведочная скважина (на нефть, природный газ: We've drilled 15 exploratory holes at the site of a proposed mine.) |
| side drill hole | боковое сверление |