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粗糙系数
1、coefficient of determination───决定系数；确定系数
2、roughness average───平均粗糙度
3、roughness───n.粗糙（度）；粗暴；猛烈；篷乱毛发；未加工
4、coefficient of friction───[力]摩擦系数；磨擦系数
5、convective coefficient───对流系数
6、coefficient meaning───系数含义
7、coefficient of variation───[数]变异系数；变动系数；变更系数；变差系数，变异系数，差异系数
8、coefficient───adj.合作的；共同作用的；n.[数]系数；率；协同因素
9、diffusibility coefficient───扩散系数
1、In the calculations of roll torque of ablation lag, a rapid method for calculating combined influence of ablation injection and roughness on skin friction coefficient is mainly described.───在烧蚀滞后滚转力矩的计算方法中，本文主要介绍滞后引射率和粗糙度对壁面摩擦系数联合影响的一种快速计算方法。
2、if the frictional resistance coefficient is a function of relative roughness, then the form resistance coefficient is independent of the Reynolds number.───若流线型物体表面的摩擦阻力系数仅为相对粗糙度的函数，则形状阻力系数与雷诺数无关。
3、value of additional coefficient of raft roughness is established through the comparative analysis of raft prototype resistance measurement on the spot and relevant model experiment.───通过木排原型阻力的现场测试与相应的模型试验分析对比，确定了木排粗糙度附加系数的数值。