average specific frictional head loss
Optimal Specific Frictional Head Loss
Specific Frictional Head Loss
frictional loss coefficient
frictional-loss coefficient
virtual frictional loss
calculation of head loss
Coefficient of head loss
Coefficients of Head Loss
head loss
整粒米率
水头损失
过滤阻力
水头降
水力损失
压头损失
水头损耗
高差损失
落差损失
总压损失
头损耗
head loss due to friction