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с шестигранной головкой stresses
O&G, tengiz.	hexagonal head; hexagon
tech.	hex hd (винт Nevermind6662)
transp.	hexagon-headed

с шестигранной головкой: 92 phrases in 20 subjects

Abbreviation	1
Armored vehicles	2
Automated equipment	8
Automobiles	5
Aviation	3
Construction	7
Electrical engineering	1
Electronics	3
Engines	1
Forestry	2
General	7
GOST	1
Makarov	1
Mechanic engineering	4
Mechanics	5
Military	1
Nautical	3
Oilfields	1
Technology	24
Transport	12