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本刊１３卷１期刊出的对本刊５卷１期与１０卷２期两篇关于铁路轨道接头动力计算理论探讨的评文，有关阻尼Ｃ的评论过于简略，兹缀此补遗。本补遗指出：“探讨一”推导的Ｃ＝ｔａｎδ＝Ｄ＇／Ｄ与（２、１１）式是根本错误的。这里Ｃ是阻尼系数，它的量纲是“力除以速度”等于ＭＴ￣（－１），而ｔａｎδ和Ｄ＇／Ｄ是无量纲的。一个理论公式，左右两边量纲不同，显然不能成立。由此推导出的（２、１１）式当然也是错误而无法应用的。
This article published Vol. 5, No. 1 and No. 10, No. 2, two papers on railroad track joint dynamic calculation theory of commentary, the damping C’s comment is too simple, this addendum. This addendum points out that the C = tan δ = D ’/ D and (2,11) deductions from Exploring a are fundamentally wrong. Where C is the damping coefficient, and its dimension is “force divided by velocity” equals MT ~ (-1) while tan δ and D ’/ D are dimensionless. A theoretical formula, on both sides of the different dimensions, obviously can not be established. The resulting (2,11) formula is of course also wrong and not applicable.