针对带时滞二阶振荡环节的系统传递函数,我们这里研究了,二阶振荡环节时间常数增大,对系统动态性能的影响,读者可以在程序上对时间常数进行修改,即可得出比较与区别.-brought against Delay second oscillation link system transfer function, we studied here, and the second time constant oscillation links increased, the dynamic properties of readers, the procedure for amending time constant can be obtained by comparison with distinction.