达人给我解释一下这一段话

smile

Echo InForm settings for Group 13
  inform13begin
REAL(GA,GC)
GA=4.5
GC=3.0
CHAR(VIN,MDOT)
VIN=GA*(ZG/10)^(1.0/GC)
MDOT=:RHO1:*:VIN:
(SOURCE OF P1 AT INLET IS :MDOT
(SOURCE OF U1 AT INLET IS :MDOT:*:VIN
(SOURCE OF KE AT INLET IS :MDOT:*(0.05*:VIN^2.0)
(SOURCE OF EP AT INLET IS :MDOT:*0.1643*KE^1.5)