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проходка тоннелейstresses
dril. tunneling excavation (Sergey Old Soldier)
проходка тоннеля
bridg.constr. tunnel driving
construct. tunneling; tunnel piercing
проходка тоннелей: 40 phrases in 7 subjects
Bridge construction2
Construction29
Makarov1
Military3
Oil / petroleum1
Rail transport1
Road works3