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four-hour stresses
Gruzovik	четырёхчасовой

four hours: 70 phrases in 22 subjects

Astronautics	5
Aviation	3
Banking	1
Business	1
Chemistry	1
Clinical trial	1
Construction	1
Diplomacy	1
Energy industry	3
Firefighting and fire-control systems	1
General	19
Human resources	1
Makarov	14
Mathematics	1
Medical	3
Military	3
Navigation	1
Proverb	1
Sakhalin	2
Technology	4
Telecommunications	1
Радиоактивное излучение	2