Terms for subject Refrigeration containing frictional

English	Chinese
duct frictional per unit length	单位长度的风道摩擦阻力
frictional and dynamic losses	摩擦和动力损失
frictional loss of head	水头的摩擦损失
frictional losses per floor inside the pressurized stairwell	压力楼梯井内每层的摩擦损失