对随机微扰型位相片，输出模式是部分相干的，在合适参数下，也可得到平顶光束。

For resonators with random disturbed phase mirror, its modes are partially coherent, and there also exists a suitable parameter to get flat top beam.

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采用传输矩阵的方法，研究了随机生长误差对双腔型平顶滤波器透射特性的影响。

The effect of the random growth error on the transmission performance of the double half-wave filter with flat-top response is studied, with the transmission matrix method.

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并发现正常限血流图波型可以出现转折波和平顶波。

We also found turning wave and flat topped wave...

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