In the paper presented by Liu et al. (2016), herein referred to as the original paper, a regression model was developed to estimate the compressive strain induced in X80 steel pipes crossing strike-slip faults. Later, a corrigendum (2017) was written by the original authors to correct the problems with the proposed equation and Fig. 14 of the original paper. However, there is still one problem remaining with the paper that limits the application of the proposed equation and makes it difficult for readers to understand the content. In this short paper, the discusser points out the issue and provides the readers with an explanation of the problem that exist with the proposed model.

在Liu等人的论文中。（2016年），这里称为原始论文，开发了回归模型来估计X80钢管穿过走滑断层时引起的压缩应变。后来，原始作者编写了勘误表（2017），以纠正所提出的方程式和原始论文的图14中的问题。但是，本文仍然存在一个问题，该问题限制了所提出方程的应用，并使读者难以理解其内容。在这篇简短的论文中，讨论者指出了这个问题，并为读者提供了对所提出的模型存在的问题的解释。