An application of three dimensional photoelastic stress analysis in a dam with drains for floatage at the Three Gorges Project is described.

叙述了三维光弹析在三峡工程排漂孔坝段中的用。

By isualization the phased array pulse with a strobed photoelastic system the real picture can be seen.

使相控阵脉冲和光弹系统同，以看到超声脉冲传播的真实照片。