“非定常流动”的概念、定义、翻译、参考文献-科学参考

单词	非定常流动
释义	非定常流动 Encyclopedia 理学气体动力学释 unsteady flow非定常流动流体的流动状态随时间改变的流动。若流动状态不随时间而变化，则为定常流动。流体通常的流动几乎都是非定常的。 Physics ＞力学和理论力学＞流体力学＞释义 unsteady flow非定常流动
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