... non-stationary method ==> 不定常法 non-stationary motion ==> 非定常运动 non-stationary noise ==> 不稳定噪声 ...
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本文研究二维厚度翼型的大攻角非定常运动。
The unsteady motion of a two-dimensional thick airfoil at high angles of attack is considered in this paper.
作者引出了在凝结反馈作用下非定常运动中的频率公式和定常运动下的波速公式。
The frequency equation for the non-stationary case is given with the feedback of condensationtaken into consideretion.
当降落伞在空气中作非定常运动时，空气动量的变化率必须包括在降落伞的运动方程中。
As a parachute canopy moves unsteadily through the air, its equations of motion must include the rate of change of momentum of the air in which it is immersed.
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