( ii ) statistical equilibrium theory for gi / g / 1 queueing system ( 1 ) calculation of expectation and integral of a special family of func - tions of the idle - busy period for gi / g / 1 queueing system is settled . these element will be shown in the representation of the stationary distribution for the l ( t ) (二) gi g 1排队系统的统计平衡理论( 1 )求出gi g 1排队系统的忙闲周期的数学期望和特定的一族函数的积分,这些量将在队长l ( t )的平稳分布的表达式中出现。