transient

transient fault [計] 瞬時故障；瞬態故障

transient vibration [機] 瞬態振動；瞬時振動；過渡振動；瞬變振動

transient overshoot [物] 瞬時過沖；翻譯；瞬時過沖；瞬態過沖英語

It is transient in the sense that it exists only during the running of the process.

它僅在流程運行的過程中存在，從這個角度來講，它是瞬態的。