| 单词 | tunnel-borer | 
| 释义 | > as lemmastunnel-borer   tunnel-borer  n. ΘΚΠ society > occupation and work > worker > workers according to type of work > manual or industrial worker > earth-movers, etc. > 			[noun]		 > one who makes tunnels tunnel-workman1843 tunneller1860 tunnel-borer1877 tunnel-man1897 tunnel-worker1903 rock-hog1909 1877    E. H. Knight Pract. Dict. Mech.  				Tunnel-borer, a ram, operated by compressed air, for making excavations through rock. 1890    J. Cagney tr.  R. von Jaksch Clin. Diagnosis vi. 151  				Where a severe form of anæmia occurs in labourers..especially..brick-burners, miners, and tunnel-borers. < as lemmas  | 
	
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