Russian ⇄ Bulgarian Chinese Czech English French German Japanese Kazakh Polish Romanian Serbian Latin Ukrainian

марка бетон stresses
O&G, sakh.	concrete grade
марка бетона
construct.	quality class; grade of concrete; concrete grade (Yuriy Melnikov); concrete strength; type of concrete; concrete strength (по точности)
марка класс бетона
bridg.constr.	grade of concrete

марка бетон: 3 phrases in 2 subjects

Construction	2
Electronics	1