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el. percussion borer
eng.geol. chuck drill; percussion drilling rig; percussion machine; percussive drill
hydroel.st. percussion drill; thrust borer; hammer drill
tech. chopping drill; churn drill outfit; churn drill rig; knob boring machine; percussion boring machine; percussion drill (rig); rock drill
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tech. hammer drill
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eng.geol. hammer drill
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: 100 phrase in 15 subjects
Architecture1
Bridge construction1
Drilling2
Electronics4
Engineering geology18
General1
Hydroelectric power stations2
Mechanic engineering1
Mechanics2
Metallurgy2
Mining1
Oil / petroleum4
Project management1
Rail transport2
Technology58