The rheological characteristics of incompetent rock are analysed by using Ut curves for the whole process of rheological deformation.

文中通过分析软岩流变特征找出流变速度与作用载荷之间的关系。

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This doctoral dissertation is pertaining to the research subject concerning the non-linear seepage mechanism in low permeability incompetent rock, which is supported by National Science Fund of China.

低渗透岩石非线性渗流机理及其数值计算方法的研究是当前渗流力学研究的一个前沿课题，对水利工程、石油工业、矿山开采、废料填埋等国民生产有着重要的意义。

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However, in the short term, America's capacity to borrow at rock bottom rates is being damaged by the perception that its political class is incompetent.

BBC: Three crises prompt global stock market slide