aeolian ripple mark 风成波痕
current ripple mark 波痕 ; 流痕
transverse ripple mark [地质] 横向波痕 ; 横波痕
linguoid ripple mark 舌形波痕 ; 舌状波痕
ripple-mark index 波痕指数
rhomboid ripple mark [地质] 菱形波痕 ; 菱形流痕
aqueous ripple mark 水成波痕
以上来源于: WordNet
N one of a series of small wavy ridges of sand formed by waves on a beach, by a current in a sandy riverbed, or by wind on land: sometimes found fossilized on bedding planes of sedimentary rock 波痕
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