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коловратный насос stresses
aerohydr.	vane-type blower
automat.	lobular pump; rotary piston lobe pump; rotary piston lobe-type pump
Makarov.	rotary piston lobe pump; rotary piston lobe-type pump
tech.	rotary pump; lobe rotary pump; lobar rotary pump
transp.	lobe pump; rotary lobe pump

коловратный насос: 3 phrases in 2 subjects

Automobiles	1
Transport	2