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pierścień m
chem.	noyau m (w związkach organicznych); cycle m
construct.	anneau m; collier m; étrier m

pierścienia : 123 phrases in 16 subjects

Analytical chemistry	1
Building structures	2
Chemistry	25
Construction	68
Electric motors	4
Electric traction	3
Electricity generation	6
Electronics	3
Energy industry	1
General	1
Mechanic engineering	2
Nuclear physics	2
Polymers	2
Power lines	1
Rail transport	1
Transport	1