| 释义 |
rock drill
Thesaurus| Noun | 1. |  rock drill - a drill for penetrating rock bore bit, borer, stone drillcross bit - a rock drill having cruciform cutting edges; used in miningdrill - a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)star drill - a steel rock drill with a star-shaped point that is used for making holes in stones or masonry; it is operated by hitting the end with a hammer while rotating it between blowsstraight flute, straight-fluted drill - a rock drill with flutes that are straight |
Translations
rock drill
rock drill[′räk ‚dril] (mechanical engineering) A machine for boring relatively short holes in rock for blasting purposes; motive power may be compressed air, steam, or electricity. rock drillA machine or device for drilling a hole in rock so that it may be blasted; usually driven by compressed air, but also may be driven by electricity or by steam.rock drill
Synonyms for rock drillnoun a drill for penetrating rockSynonymsRelated Words- cross bit
- drill
- star drill
- straight flute
- straight-fluted drill
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