* EX MODEL
L XCH.K=XCH.J+DT*(R1.JK-R2.JK)
N XCH=CHC
C CHC=10000
R R1.KL=(XC.K)/BY*TX
A XC.K=MX-SX.K
C BY=5
C TX=.7
C MX=6000
R R2.KL=(XCH.K)/PS*JB
C PS=6
C JB=.9
L SX.K=SX.J+DT*(R2.JK-0)
N SX=XX
C XX=3000
spec dt=2 //仿真时间间隔//
spec length=150 //仿真终止时刻//
spec time=0 //开始时刻//
spec prtper=2 //打印间隔//