浅水波。方程的导出。线性化及其解。辐射过程。所有浅水波方程的特征曲线和激波。
Shallow water waves. Derivation of the equations. Linearization and solution. Radiation conditions. More on characteristics and shocks, now for all Shallow water equations.
辐射能有波状特征，这些特征和水波的波状特征相似。
All radiant energy has wavelike characteristics, analogous to those of waves that move through water.
夜幕垂垂的下来时，大小船上都点起灯火。 从两种玻璃里映出那辐射着 的黄黄的散光，反晕出一片朦胧的烟霭； 透过这烟霭，在黯黯的水波里，又逗起缕缕的明漪。
When night falls and lanterns on all the boats are lit, the soft, yellow light piercing two layers of glass sheds a vast halo of haze and casts shimmering stripes on the dim, rippling water.
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