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护筒 hùtǒng
bridg.constr. protective casing; pile casing
eng.geol. lead-in tube
tech. drive pipe
护筒: 39 phrases in 12 subjects
Aviation1
Drilling1
Electronics5
Engineering geology3
Explosives and Explosive Ordnance Disposal2
General2
Ice hockey1
Mechanics1
Oil / petroleum1
Shooting sport1
Technology19
Textile industry2