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крыльчатая гайка stresses
auto.	eared nut
Gruzovik, tech.	finger nut
nautic.	ear nut; fly nut; thumb nut
oil	butterfly nut; wing nut
shipb.	flynut
tech.	winged nut
крыльчатая барашковая гайка
auto.	butterfly nut; fly nut

крыльчатая гайка: 9 phrases in 3 subjects

Mechanic engineering	2
Oil / petroleum	2
Sakhalin	5