绝对当量粗糙度
absolute equivalent roughness
粗糙度系数
roughness coefficient
roughness factor
surface roughness coefficient
joint roughness coefficient
节理粗糙度系数
joint roughness coefficient
joints roughness coefficient
腐殖当量系数
coefficient of humus equivalence
巴兴粗糙系数
Bazin roughness coefficient
粗度系数
Coefficient of roughness
coefficient of rolling resistance
曼宁粗糙系数
Manning roughness coefficient
coefficient of Manning’s roughness