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вихрь вектора stresses
astr.	curl of vector field; rotor; rotation
construct.	curl (of vector)
math.	curl of a vector
meteorol.	curl of vector (скорости)
tech.	curl of vector
вихря вектор
math.	vorticity vector

вихрь вектора: 4 phrases in 2 subjects

Aerodynamics	1
Makarov	3