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xyz,, uvw,, Bernoulli-Euler u c c c v, w θ x c c c dv ( x) dw uxyz (,, ) = u( x) y z + ω( yz, ) φ dx dx c vxyz (,, ) = v( x) zθ x ( x) c wxyz (,, ) =
5. 5.1,, V, ,, ( 5.1), 5.2.2,,,,,,,,,, 5.2.3, 5.2 L1, L2, L3 3-1, 2-2, 1-3,,, L1, L3, L2, ,,, ( 5.3),,, N 3 L 2 S L 1 L 3 5.1: 5.2: 1
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