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。
Quantum fluctuations could make it ripple and roll like the surface of the ocean, Weiler says.
量子的起伏现象可以使它像海洋表面上的波浪和滚动，维勒说。
Where the ice passes over especially steep terrain, ripple marks on the glacier surface indicate the icefall.
冰川所过之处，特别是那些地势陡峭的地方，会在冰川表面留下波纹痕迹，提示这些地方有冰川瀑布。
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