利用流动稳定性理论中的一般共振三波的概念，提出了湍流边界层近壁区域相干结构的理论模型。

The theoretical model of the coherent structure in the wall region of a turbulent boundary layer was proposed, using the idea of general resonant triad of the theory of hydrodynamic stability.

youdao

结果表明，利用该方法不仅能够完全补偿飞秒BBO光参量放大在连续调谐时三波的群速失配，而且能够实现最大的参量带宽。

The results indicate that this method not only can match completely group velocities among three waves, but also can achieve maximal parametric bandwidth for continuous tunable femtosecond BBO OPA.

youdao

嗨，亲爱的，你能帮我们三个和波比预定一门体育课程吗？

Hi dear, could you book a sports course for the three of us and Bobby?

youdao

So, on the basis of this, Socrates proposes how to proceed Kallipolis with the construction of Kallipolis, and he does so through what he calls three waves.

以此为基础，苏格拉底提议,如何着手建立，他的作法是,透过他所谓的三波。

耶鲁公开课 - 政治哲学导论课程节选