trigonometric approximation
... 三角巾 sling; 三角近似法 trigonometric approximation; 三角晶系 trigonal system; ...
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根据曲板的边界条件给出三角级数的解析解和有限条法的近似解。
According to the boundary conditions of the curved slab, an analytical solution by trigonometric series and an approximate solution by method of finite strips have been given.
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