| 单词 | drill rod |
| 例句 | The flat drill has an angle between cutting edges of about 110 degrees and is usually made from special steel commercially known as drill rod. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z Then, neither height, nor depth, nor thickness of the stone could prevent the progress of the drill rod. Inventions in the Century 2011-07-20T02:00:14.643Z Separately, state TV said a drill rod sunk into the mine by rescuers had some wire bound to it when it was pulled out, another indication of survivors. Chinese mine rescue workers hear tapping from below 2010-04-02T12:28:00Z The cutter is made from drill rod and it is slightly cupped out on the cutting end to give keenness to the cutting edge. Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, etc. |
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