Download - iranestekhdam.ir · jl T b. l, p x 9 kg K k W / kg K 25 — . jl (i 1.3 I p , p l) 1141 (r , , (f (r , 091.5 l) QC . ôp = _(v.pV) (f ôp ôp =-v.v (r p ðt V.V=0 0 / ) m cm tm m