The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强分布会呈现中心光强小于周围光强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面强分布会呈现中心强小于周围强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强分布会心光强小于周围光强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定件，截面上光强分布会呈现中心光强小于周围光强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强分布会呈现中心光强小于周围光强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强分布会呈现中心光强小于周围光强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强分布中心光强小于周围光强“草帽型”分布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强布会呈现中心光强小于周围光强“草帽型”布。

The light intensity distribution exhibits straw hat shape on a certain conditions, in other word to say, the central light intensity is less than acroteric light intensity.

在一定条件下，截面上光强分布会呈现中心光强小于周围光强“草帽型”分布。