Drawing a tangent after inflection and intersected the abscissa the slope of the tangent was taken as the flexile modulus.
在不规则样条的负荷-挠度取拐点后直线段切线与横坐标的交点作零点修正后所测得的弯曲弹性模量比较接近真实值。
In the testing of the flexile modulus of PVC-U profiles, the load-deflection trace varied with the shapes of the samples, an inflection appeared when using irregular samples.
在对PV C - U型材弹性模量试验中发现，同一样品的规则样条与不规则样条的弯曲弹性模量相差较大。
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