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So longitudinal inclination with large gradient angle should be avoided.
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the calculation of shear force relies on the empirical formulas
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wyjjf: ½ð±Ò+5, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2015-10-21 07:58:05
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  Shear force calculation relies on empirical EQUATIONS
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