An adhesion coefficient of less than 0.27 would be appropriate under dry rail surface condition.
在干燥轨面状态下，选取常用粘着系数以不大于0.27为宜。
Surface heat transfer coefficient;
表面换热系数；
The physical significance of the surface tension coefficient is expounded;
阐明了表面张力系数的物理意义；
The physical significance of the surface tension coefficient is expounded;
阐明了表面张力系数的物理意义；
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