“air-track drill”的概念、定义、翻译、参考文献-科学参考

单词	air-track drill
释义	air-track drill [`er ¦trak ´dril] ^{MINING ENGINEERING} A heavy drilling machine for quarry or opencast blasting, equipped with caterpillar tracks and operated by independent air motors.
随便看	sabadilla Sabathé's cycle Sabattier effect Sabellariidae Sabellidae Sabellinae saber saw sabin Sabinas Sabine formula Sabin vaccine sabkha sable sable brush sabot sabotage Sabouraud's agar sabulous sac saccadic movement saccate saccharase saccharimeter saccharin saccharoidal

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