设p=WCu<1,(当2I时，系统无稳定状态) 则 P02 +交 入/ p当n=l2,c- n! Pn=CnPo= 当n≥C CIcn-co c+j CI BTPR C1-p2 Ls=Lg+Wu Ws-Ls/A W。=LgA=Ws-l/ 设ρ=λ/Cμ＜1，（当ρ≥1时，系统无稳定状态） 则 P0= ( ) ( ) 1 ρ 1 n! c! c c n n n μ λ μ c 1 λ n c n 0 1 n 0 1 C C 1 −  + • =  + − = = = −  Pn= CnP0= ( ) P , n C n c C!C P , n 1,2, ,c 1 n! 0 0 n n μ λ μ λ  − = −         当 当  Lq ( ) ( ) ( ) ( ) 2 j C!1 ρ ρ c ρ C! c ρ c C c C!C c j μ λ μ λ − =  =  − + = = =     = = = + = 0 j 0 0 j 0 0 j 0 c j n c n P j P n-c P jP j P c Ls =Lq+λ/μ Ws =Ls /λ Wq =Lq /λ=Ws-1/μ