引用第5楼Osazone于2007-04-07 21:32发表的:从通信书上找的,H11 short-circuit input resistance 短路输入电阻H12 reverse oped-circuit voltage gain 反向开路电压增益H21 forward short-circuit current gain 正向短路电流增益H22 open-circuit output conductance 断路输出电导.......