unsteady periodic stresses 不稳定交变应力
Periodic unsteady conduction 周期性导热
periodic unsteady flow 周期性非定常流动
Periodic-Unsteady Injection 周期不稳定注水
A theoretical and experimental study of the unsteady thermal balance testing for the satellite with periodic heat source is presented in this paper.
本文从理论和实验的方法研究了具有周期热源变化的卫星不稳定热平衡问题。
In this paper, the Periodic unsteady state heat conduction of coal wall in the front of underground coal gasification stove is researched.
研究了煤炭地下气化炉前方煤壁的周期性非稳态导热。
Stable periodic motions such as wing-rock and oscillatory spin tend to be suppressed or the amplitudes be lessened due to the rotational damping of the unsteady aerodynamic delay.
对于稳定的周期运动，由于增加了系统的阻尼耗散项从而减少了振荡幅度。
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