увеличенного диаметра

: 36 phrases in 14 subjects

Astronautics	1
Automated equipment	1
Drilling	3
Firefighting and fire-control systems	1
Mass media	1
Medical	2
Mining	3
Oil / petroleum	9
Oil and gas	4
Oil and gas technology	6
Oilfields	2
Technology	1
Transport	1
Weapons and gunsmithing	1