transient regime meaning in English

瞬态状态

Early transient regime
早期不稳定阶段
Our mainly work in theoretical study are described as followings . as pulsed opos work in a transient regime , a dynamic model is applied to analyzes its operation characteristics , and a result of the numeral simulations for the transient regime parametric process is presented and it is fitted the experimental result very well . thus it provides theoretical foundation for the opos practical parametric designs
本文在理论方面的主要工作是：由于脉冲opo工作于瞬态，因此用动态模型对其运转特性进行了分析，给出了瞬态参量过程的数值模拟结果并且与已有的实验结果吻合的很好，这为opo的实用化的参数设计提供了理论依据。