The motion can be of large amplitude, and the free surface condition is linear.
运动可以是大振幅的,但自由面条件是线性的。
There has been improvement in surface condition but not in fundamental weakness.
表面情况已有改善但根本的弱点依然如故。
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。
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