| 释义 |
roller bit
Thesaurus| Noun | 1. | roller bit - a drill bit that has hardened rotating rollersrock bitdrill bit, drilling bit - a bit used in drilling for oil |
roller bit
roller bit[′rō·lər ‚bit] (mechanical engineering) cone rock bit roller bit
Related to roller bit: Roller cone bitSynonyms for roller bitnoun a drill bit that has hardened rotating rollersSynonymsRelated Words |