periodic surface ripple 表面周期性条纹
Primary surface ripple below discernable amount in star test.
在星点测试之下主镜没有可办别的表面起皱。
The mechanism of coherent stimulated light scattering and the characteristics of the surface ripple in the laser interaction with materials is described.
叙述了激光与材料相互作用过程中引起相干受激光散射的机制，以及形成材料表面波纹的特性。
The air was so still that there was hardly a ripple on the pond's surface.
没有风，池塘的水面上几乎看不到波纹。
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