Identification of dynamic natural frequencies and viscosity damping coefficient for a large-scale structure in practical working condition is a very difficult problem.
大型构件在实际工作环境中的系统动态固有频率和粘性阻尼系数辨识一直是一个“棘手”的问题。
Experimental testing is used to measure the dynamic frictional coefficient of the brake-tile on the working condition of simulated promotion.
在模拟矿井提升的工况下，实验测量闸瓦的动摩擦系数。
Experimental testing is used to measure the dynamic frictional coefficient of the brake-tile on the working condition of simulated promotion.
在模拟矿井提升的工况下，实验测量闸瓦的动摩擦系数。
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