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Bohrrohr m
construct.	casing (pipe); drive casing; drive pipe; hollow-stem auger; hollow-stemmed auger
dril.	casing
met.	well boring tube
mining.	hollow drill (steel); hollow drilling rod; hollow rod; mandrel; mandril; maundril
nat.res.	casing pipe; well tube; boring pipe; coring tube; sampling pipe
transp., construct.	borehole tube
bohrrohr m
gen.	joint of pipe; section of pipe

Bohrrohr: 4 phrases in 2 subjects

Coal	1
Mechanic engineering	3