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hazard class stresses
avia.	класс опасности
energ.ind.	класс опасности (напр., возможность аварии, заражения, облучения, взрыва)

hazard class: 34 phrases in 17 subjects

Architecture	2
Caspian	1
Construction	1
Ecology	2
Electronics	1
Energy industry	15
Environment	1
Firefighting and fire-control systems	1
General	1
International transportation	1
Law	1
Logistics	1
Oil / petroleum	1
Oil and gas	1
Sakhalin	1
Technology	2
Weapons of mass destruction	1