众所周知，当一个过程具有共振态、积分电路及不稳定设备传递函数的特点时，同样很难得到较好的闭环步进回应。

Also, it is well known that it is difficult to get good closed-loop step responses for processes with resonances, integrators and unstable plant transfer functions.

youdao

众所周知，当一个过程具有共振态、积分电路及不稳定设备传递函数的特点时，同样很难得到较好的闭环步进回应。

Also, it is well known that it is difficult to get good closed-loop step responses for processes with resonances, integrators and unstable plant transfer functions.

youdao