The bed thickness of incompetent beds tends to change during deformation.

软弱层在形变期间趋于在厚度上发生变化。

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Bed thickness is analyzable until the bed thickness is vanishingly small.

可分析的薄层厚度可以无限小，直至消失。

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Exaggerated sections distort the shapes of folds as well as bed thickness.

比例放大的剖面歪曲褶皱的形态和岩层厚度。

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So by firing radio pulses through the overlying sheet and recording the return echoes, scientists can plot both the depth of the rock bed and - by definition - the thickness of the ice covering.

BBC: Antarctic ice volume measured