退积反射是地层厚度向凹陷中心减薄且其顶部被“削截”的一种反射现象，与一般发生在凹陷边缘地层顶界被削截减薄的情形不同。
Retrogradation reflection is a reflected phenomenon that reflects the thinning strata and truncated its top in toward basin center, which is different from that takes place generally in basin margin.
研究了功能梯度材料截顶圆锥壳在横向机械载荷与非均匀热载荷同时作用下的变形问题。
The deformation of functionally graded truncated conical shell subjected to transverse mechanical load as well as non-uniformly thermal load is studied.
截顶圆锥壳的破坏过程是一个从屈曲破坏直至压溃的过程。
The destroyed process of the truncated conical shell is from buckling to collapse.
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