定义：当入射角达到临界角时，透射波就会变成沿下层界面以速度V2传播的波为滑行波
同时，给出了计算光滑行波解的公式。
The formulas to compute the travelling waves are also educed.
在实验中用不同厚度玻璃板观测滑行波的变化规律，并观测两层介质中滑行波与两种介质厚度的关系。
The variation law of slide wave is studied with different thickness of glass plates and the relation between slide wave in two layer medium and the thickness of the two media is observed.
一栋栋高楼金碧辉煌，一座座公园参差错落，河流蜿蜒绕过，穿大桥，过大石，淌向神奇的港湾； 千帆井然，滑行波间，往来其上。
Sleek ferries glide up and down the River, which snakes its way around shiny buildings and sprawling parklands, under the mighty Bridge, past colossal rock faces , and out to magical Bay.
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