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。
Automatic detection of heavy rail surface defects, has long been expected to solve the problem.
重轨表面缺陷的自动检测，长期以来一直是期待解决的问题。
Automatic detection of heavy rail surface defects, has long been expected to solve the problem.
重轨表面缺陷的自动检测，长期以来一直是期待解决的问题。
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