English ⇄ Chinese German Russian

cover hole stresses
oil	разведочная скважина (при бурении по сетке)

cover hole: 50 phrases in 21 subjects

Astronautics	1
Automated equipment	1
Automobiles	2
Building structures	1
Construction	2
General	7
Geology	1
Makarov	6
Metallurgy	1
Military	1
Mining	2
Nautical	1
Navigation	1
Oil / petroleum	6
Oil and gas	4
Oil and gas technology	2
Rail transport	1
Surgery	2
Technology	6
Torpedoes	1
Weapons of mass destruction	1