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спинка лопасти stresses
avia.	suction face of a blade
energ.ind.	blade back (напр., вентилятора)
Makarov.	suction face of a propeller blade
nautic.	back face
railw.	back of blade
tech.	blade back; suction face
transp.	suction face of blade

спинка лопасти: 1 phrase in 1 subject

Aerodynamics

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